The event brief
Shaping the event

The event brief: purpose, guests, date and who decides

One page that says why the event happens and for whom, about how many people, two or three dates, the kind of place, a spending ceiling, who decides what, and what a good outcome looks like. Every later choice is tested against it.

Start here Essentials

For a first pass, write five lines on the brief sheet. They are enough for a dinner for six, and the other chapters read from them. The rest of the brief can wait until the event needs it.

  1. Write the occasion and why, in one sentence. Say who the event is for and what it is meant to do (the lines of a brief).
  2. Write about how many people, the date and the place. Count the hosts in. Give one date, or two or three to choose from, and the kind of place if you have no address yet (the date).
  3. Write a spending ceiling. The most you will spend in total, not a guess at what things cost (the lines of a brief).
  4. Write the one thing that matters most, and who decides if plans change. One sentence you can check afterward, and one name (a good outcome, who decides).

Minimum time: about 15 minutes. Done when: the brief sheet has those five lines filled in.

Why the brief comes first Understand

An event brief is a short written record of what the hosts have decided the event is: why it happens and for whom, about how many people, when, where, the food idea, a spending ceiling, who decides what, and what a good outcome looks like. It fits on one page. It comes first because every later choice is tested against it. A venue is right or wrong for this count on these dates. A menu fits this budget and these guests, or it does not. When a relative suggests a bouncy castle, the brief is what you check the idea against.

The idea is not ours. Institutions that run many events put these questions on the first page, before anything is booked. Syracuse University's checklist opens with the event's name, date, proposed alternative dates, location and alternatives, objective, expected attendance and proposed budget (Syracuse University's Event Planning Checklist). Kean University's proposal form asks who the event is aimed at, what they should know or do, and what the event is meant to achieve (Kean University's Event Proposal form). The 4-H handbook from UC Cooperative Extension in Alameda and Contra Costa counties lists ten steps for an event committee; the first two are goals and objectives and the audience, and the facility and the budget come after (the UC ANR 4-H Event Handbook). The University of New Mexico's checklist starts with the tasks to do as soon as possible and says to reserve space for a large event as soon as the date is set (UNM's Event Planning Guide). At home, the same questions do the same job: they settle the decisions before money is spent.

A brief does a second job. It is the one page you can hand to someone else: a co-host, a helper, a caterer, a committee member who missed the meeting. Hiring suppliers builds each supplier brief by copying its facts, The budget starts from its ceiling, and Guests and invitations turns its rough count into a number you can plan with.

A brief changes as the event takes shape. When a decision changes, change the line and record it in the decision log (who decides).

The lines of a brief

The brief sheet has a line for each part below. For a dinner for six, the five lines in Start here are enough. For a reunion, a milestone party or a fundraiser, fill them all. The examples are invented; the last column names the chapter that reads each line.

LineWhat to writeExampleRead by
Occasion and purposeOne sentence: what the event is, and what it is for"A retirement lunch for our department head, so everyone she trained can thank her"Every chapter
For whomThe guest of honor, the group or the cause"Her, her family, and the department past and present"Guests and invitations
HostsWho is hosting, and who pays"The department, from the social fund"The budget
About how manyA target and a maximum, hosts included"About 40; no more than 50"Guests and invitations, Venue and layout
Date and backup datesTwo or three dates, a time of day, and what limits each"One of two Fridays in May, noon to 2:00 pm"The planning schedule
PlaceAn address, or the kind of place"A private room within 20 minutes of the office"Venue and layout, Permits and insurance
Food planWho makes the food, in a few words"A caterer's lunch buffet and a cake"A dinner party, Feeding a crowd, Hiring suppliers
Budget ceilingThe most you will spend, in total"$1,200"The budget
Who decidesA name for each kind of decision"Date and place: the office manager; guest list: the guest of honor"This chapter
Must-haves (three)The three things the event is not complete without"A seat for everyone; speeches before 1:30; a vegetarian main"Venue and layout, the food chapters, The run sheet
AvoidWhat the hosts or the guest of honor do not want"No microphone; no surprise roast"The run sheet
A good outcome looks likeA sentence you can answer yes or no afterward"Everyone she trained who can come gets a few minutes with her"The run sheet's debrief
Key deadlinesThe dates that close options"Room deposit due March 1"The planning schedule

The purpose sentence

The occasion and the purpose are different things. The occasion is what is being marked: a 70th birthday, a graduation, the end of a season. The purpose is what the event is for. Two parties for the same birthday can have different purposes: one gathers everyone the guest of honor knows, the other is a quiet dinner with six people who matter most. The purpose settles arguments later: does a DJ help everyone talk to the guest of honor, or stop them hearing each other? Kean's form asks hosts to "be clear about what you hope to achieve." Write the purpose in one sentence. If two hosts would write different sentences, settle that before anything else.

About how many

Write a target and a maximum, and count the hosts in. The target is the number you plan for. The maximum is the number the place, the kitchen and the budget all have to hold. The brief's number is rough; the real one comes from the guest list, and Guests and invitations turns replies into a planning number, the count you give suppliers and cook for. Children are counted separately there, because they change the food, the seating and the safety plan. If the 4-H handbook's audience question applies to your event, add a line about it: what accommodations, if any, the guests may need. A guest who uses a wheelchair or cannot hear well in a noisy room changes the place you choose (Venue and layout).

The budget ceiling

A budget ceiling is the most the hosts will spend on the event, in total, from everyone who is paying. It is a limit, not an estimate. The budget builds estimates and quotes underneath it. Setting the ceiling before the first quote arrives keeps the event from growing to fit the quotes. If the budget shows the ceiling is too low, the hosts can raise it, shrink the event or drop an item; whichever they choose, they choose it on purpose and write it down.

Must-haves and what to avoid

Three must-haves is our convention, not a source's. Convention Three forces a choice: a list of ten must-haves is a wish list. Write the things that, if missing, would make the hosts say the event did not happen as intended. The avoid line holds the opposite: what the guest of honor dislikes, what would embarrass someone, what the place does not allow. Both lines are the hosts' preferences. Preference A helper or a supplier needs them early.

The food plan

One line, not a menu: cook it ourselves, a potluck, a caterer or restaurant, a mix, snacks and drinks only, or no food. That line decides which kitchen, which suppliers and which helpers you need. Feeding a crowd compares the choices for a group; A dinner party plans a meal at home.

A good outcome you can check afterward

Write what a good outcome looks like in words you can check after the event. "A great party" gives you nothing to check. "Carmen talks to every grandchild" can, and so can "we cover our costs and raise $800." Both are examples from this manual's fictional cases. The test comes from the 4-H handbook, which asks of each objective: "What will be different? By how many? By when?" and whether it is achievable. A host does not need all four, but the line should name something a person could see or count.

The outcome line does three jobs. It tells you what to protect when plans change: if thunder cuts the afternoon short, you shorten the speeches and keep the time with the grandchildren. It tells helpers what the day is for. And it becomes the first question at the debrief, the short talk after the event about what to keep and what to change. Ohio State's event summary template has a line for expected and actual attendance, completed after the event, for the same reason: the record is useful to whoever plans the next one (Ohio State's Event Summary template).

Some lines look like outcomes and are not. "Everyone has fun" has no yes or no answer. "100 people come" is a count, and only an outcome if the count is the point. A fundraiser's outcome is money left after costs, which a fundraiser's goal explains.

Limits

The brief records what the hosts decided. It does not make an event go well, and the outcome line is the hosts' own test, not a forecast. Weather, illness and a supplier who does not come happen to events with excellent briefs; The contingency plan prepares the decisions for those, and does not prevent them either.

The date: two or three options and what limits them

Write two or three dates, each with a time of day. Syracuse's form asks for proposed alternative dates and alternative locations on its first page. One practical reason: the first-choice date is often not free at the first-choice place. With options written down, a host who calls a venue can ask about all three in one call.

Next to each date, write what limits it. Most dates are limited by one of the things in this table.

What limits a dateWhat to askExample
The guest of honor and the people who must comeWhich dates they cannot doA graduate's last exam; a grandparent's travel
School terms and holidaysThe school calendar; holiday weekends; graduation seasonSpring break empties a school fundraiser
Season and weatherIs any of it outdoors? Heat, rain, early darkAn afternoon in July versus an evening in June (The contingency plan)
The place's free datesWhich dates the venue, park or room is free, and how far ahead it booksA park shelter that books months ahead (Venue and layout)
The slowest bookingHow far ahead the caterer, tent or performer needs the orderThe planning schedule works back from it
The hosts' own timeIs there enough time to prepare?Nicholls State's guide asks this first, at goal setting (Nicholls State's Event Planning Guide)

Size and date choose each other

The count, the date and the place limit one another. A date limits which places are free. A place limits how many people fit. A count limits which places are big enough. So one of the three is usually fixed, and the others follow from it. A 70th birthday has a fixed guest of honor and a rough date; the place follows. A school fundraiser often has a fixed place, the cafeteria, and the date follows the school's calendar. A dinner at home has a fixed place and a fixed table, so the count follows the chairs. Write down which of the three is fixed for your event. When two hosts disagree about the date, it is often because each is holding a different one of the three fixed.

Time of day

A date is not complete without a time. Write a start and an end, and for a meal, the time food goes on the table. The time changes the food (lunch or dinner), the light, the heat on an outdoor afternoon, children's bedtimes and how long people stay. When you know the times, enter them in setup: the run sheet and the helper shifts are built from them.

Deciding the date

If the date is open, it is the first row in the decision log: the options, who decides, and the date by which they decide. Pick a decide-by date that leaves time for the slowest booking. When the date is settled, enter it in setup. The planning schedule then dates every task from it, and the green boxes count down to it. Until then, setup can stay blank; the boxes say so and point back here.

Who decides

Name the person or group who decides each kind of question, and the people who are told. The usual kinds are the date, the money, the guest list, the menu, and changes on the day. It sounds formal for a family party, but it matters most there: family hosts rarely say out loud who has the last word, so the same question comes back at every phone call.

Kind of decisionWho often decidesWho is told
Date and timeThe host, after checking the guest of honor's calendarCo-hosts; the place
MoneyWhoever is paying; for a group, the officers or the treasurerAnyone who spends
Guest listThe host, or the guest of honorWhoever sends invitations
Menu and foodThe host or whoever is cooking or hiring the catererAnyone with a dietary need; helpers in the kitchen
Changes on the dayOne named person, present all dayHelpers; suppliers

The examples in the middle column are common arrangements, not rules. Preference The point is that each row has one name, or one group with a clear way of reaching a decision.

The decision log

A decision log is a short table of open and settled questions: the decision, the options, who decides, the date to decide by, what was decided, and notes. It lives on the brief sheet under the brief. It stops a question from being reopened, because the answer and the date are written down. It also shows what is still open. When the setup leaves the date, the place or the food as "I don't know yet", the log starts with a row for each.

Co-hosts and committees

When two or three people host together, write who decides what before money is spent. Siblings planning a parent's birthday often split the work by task (one handles the food, one the place, one the invitations); the brief records that split and what needs all of them, such as any spending beyond the agreed budget. A committee needs the same, plus a chair. The 4-H handbook's method divides responsibilities among the committee as its own step. West Chester University's event guide asks, among its first questions, who will be the point person for the event (West Chester University's event planning resource). The University of Kansas Community Tool Box's checklist for a fundraiser lists a designated operations lead (the Community Tool Box's fundraiser section).

On the day

Name one person who decides on the day. A point person is the one helper or host everyone else goes to when a plan has to change. That person should be present the whole time and not tied to one job, such as running the grill, that they cannot leave. On the smallest event, the point person is the host. The run sheet puts the name at the top, and The contingency plan says which decisions they make and when.

When a group hosts: who signs, and a fundraiser's goal

A parent group, a club, a congregation or a neighborhood association adds two questions to the brief: who signs for the group, and what the money is for.

Who signs

Someone's name goes on the venue agreement, the caterer's contract and the tent rental. Amherst College's checklist for student groups warns against making a personal contractual commitment, because the person who does may be personally liable for the contract fee (Amherst College's Basic Event Planning Checklist). The University of Portland's page carries the same sentence, from the same template. Syracuse's checklist says its students may not sign contracts. Those are campus rules for campus groups, but the warning behind them reaches any group: when a person signs, the contract may be theirs. Before anyone signs, ask the group's officers these questions and write the answers in the decision log. Ask the authority

  • Can the group sign contracts in its own name, and who is authorized to sign for it?
  • Does the group have its own bank account, so deposits are not paid from a member's card?
  • Does the place require a certificate of insurance, and does the group have cover (Permits and insurance)?
  • Who approves spending, and who handles cash? The Community Tool Box recommends what it calls separation of duties, so that no one person collects, records, reconciles and deposits the money.
Limits

Whether a person who signs for a group is personally liable, and what the group's own liability is, are legal questions. The answers depend on how the group is organized and on the state. This manual says what to ask and does not answer it. Ask the group's officers, the organization the group belongs to (a school district, a congregation, a league), or an attorney.

A fundraiser's goal is a net amount

Write a fundraiser's goal as the money left after costs. That figure is the net; the money taken in before costs is the gross. The Community Tool Box shows why: an event that brings in $50,000 but costs $45,000 is a different event from one that brings in $30,000 and costs $5,000. Eastern Connecticut State's fundraising sheet says to set a realistic, specific goal, and to count hidden costs, break-even points and initial investments (Eastern Connecticut State's Successful Fund Raising). The budget works out how many tickets cover the costs.

Then ask whether an event is the right way to raise the money. The Community Tool Box's organizer starts with "explore the possibilities" and "select the event", before a chair or a committee is named (the Community Tool Box's fundraiser tools). Its main section gives the example of a popular festival that left very little net revenue after costs, and says to judge an event against its stated objectives. An event can have other purposes that justify it: bringing families together, thanking volunteers, raising the group's profile. If it does, write them in the purpose line, so the group knows what it is trading the money for.

The university forms side by side, and a committee's terms Go deeper

What each form asks

Four institutions' forms, read for what each asks that the others do not. All are written for groups working inside a university or extension program.

FormWhat it asksWhat only it asks
Syracuse University, Event Planning Checklist, first pageName, date, time, location, coordinator, objective or purpose, description, expected attendance, proposed budgetProposed alternative dates and alternative locations
Kean University, Event ProposalName, date, time, location, target audience, message, objectives, description, estimated budgetWhat the audience needs to know or do, and what will hold their interest; how the event fits the group's mission
Ohio State, College of Education and Human Ecology, Event SummaryDescription, objectives and goals, dates, times, venue, key roles, audience, costs, notesWho started the event; whether it will be repeated; expected and actual attendance; who completed the record and when. It is a record for next time, filled in after
UC ANR 4-H Event Handbook (Alameda and Contra Costa)Ten steps from goals to evaluation, with a budget form for the treasurerGoals separated from measurable objectives; what accommodations the audience may need; presenters' expectations in writing after a conversation

The brief sheet in this manual takes Syracuse's alternatives, Kean's audience and objectives, Ohio State's expected-and-actual record (on the debrief sheet), and the 4-H audience question. The 4-H handbook also has rules that belong to 4-H only, such as its rule that volunteers not sign paperwork from outside organizations and that raffles are not allowed in 4-H; we do not carry those over.

A committee's terms

The 4-H handbook's step "divide responsibilities" and the Community Tool Box's steps (appoint the event chairperson, establish a committee system, form a steering committee, define committee tasks) describe the same thing at two sizes. For a group event with more than one committee, we suggest writing each committee's terms of reference: a few lines saying what the committee decides, who chairs it, its share of the budget, its decide-by dates, and what it brings back to the whole group for a decision. Convention The phrase is ours, not the sources'.

The Community Tool Box's fundraiser questions

The Tool Box's planning sheet asks for a financial goal ("how much money do you want to raise?"), other goals, the date, every task, who is responsible for each job, and potential donors. Its main section adds a revenue target, an expense limit, a break-even point and the net revenue wanted. Its debrief questions begin with whether the event reached its net-revenue goal and what it actually cost, and go on to volunteer hours, the audience reached, accessibility, safety and privacy. It also advises against turning every attendee into a fundraising prospect: collect contact details for running the event and offer an opt-in for anything else. And it says to decide each year whether to repeat, shrink, change or end the event, instead of making it bigger by default.

See it: Marcus, Elena and Dana See it

Fictional example

Marcus Bell is a fictional person, and every fact about him is invented for this manual. He uses he/him. He is 38 and rents a one-bedroom apartment with a galley kitchen: one 30-inch oven, four burners, a microwave and about four feet of counter. His table seats four, six with its leaf in. He is having five guests to dinner on a Saturday, two couples and a coworker, arriving at 7:00 pm, with the main course on the table at 7:30. One guest is vegetarian and one has a tree nut allergy. He has $150 for food and drink, wine included.

His five lines.

  1. Occasion and purpose: "Dinner at my place so five friends who know me, but not each other, meet over a meal."
  2. How many, date and place: "Six, me included. Saturday; arrive 7:00, eat 7:30. My apartment, the table with its leaf in."
  3. Ceiling: "$150 for food and drink, wine included."
  4. What matters most: "Every guest has a full plate they can eat, including the vegetarian guest and the guest with a tree nut allergy."
  5. Who decides: "Me. If a guest cancels or a dish fails, I decide that afternoon."

Known: the count, the date and times, the table, the ceiling, the two dietary needs. Assumed (Marcus's): the purpose sentence is his own wording; one date is enough, because the guests have already said yes to that Saturday. Open: whether the guest with the tree nut allergy also avoids coconut and foods made in a shared facility, settled by asking the guest (Guests and invitations); whether the oven can hold the main and the side at once, settled by the cooking timeline in A dinner party; whether his list of costs fits under $150, settled by The budget. He does not need a decision log, a backup date or an avoid line. The five lines are the whole brief for this event.

Fictional example

Elena Ortiz (she/her), 44, is planning her mother Carmen Ortiz's 70th birthday with her two brothers. Carmen uses she/her. The party is in her brother Luis Ortiz's backyard (he/him): about 50 by 70 feet, with a patio and a garage. It is a Saturday in June, 2:00 to 6:00 pm, for 45 guests, eight of them children, with a taco caterer serving from 3:00 pm, beer, wine and soft drinks served by the family, a rented 20-by-30-foot tent and speeches at 4:00 pm. The budget is $3,000, split three ways. All of this is invented.

Their brief, in part (the siblings' own choices, assumed for this example). Purpose: "An afternoon for Carmen's 70th with her family and friends around her." A good outcome: "Carmen talks to every grandchild." Must-haves: shade for Carmen and the older guests; the speeches while the food is still out; a short toast. Who decides: the date, Elena, after checking Carmen's calendar; the guest list, Carmen, with Elena keeping the list; the menu and the caterer, Elena; anything about the house and yard, Luis; money, each sibling within the line they hold, and all three together for anything the budget does not already cover. On the day, Elena is the point person.

A decision log row. Decision: tent or no tent. Options: a rented tent, or the patio and garage only. Who decides: all three. Decide by: the tent company's deposit date. Decided: a tent. Notes: whether a tent this size (600 square feet) needs a permit where Luis lives is still open, and the fire department's answer settles it (Permits and insurance). The caterer's final-count date is also open, settled by the contract (Hiring suppliers).

Fictional example

Dana Whitfield (they/them), 51, is volunteer coordinator for the parent group at Riverbend Elementary, a fictional school. The event is a spaghetti dinner in the school cafeteria on a Friday in March, 5:30 to 8:00 pm: 120 tickets at $12 for adults and $6 for children, 14 volunteers in two shifts, sauce made by volunteers in the school kitchen, bread and salad bought, desserts donated, a basket raffle, and no alcohol. The cafeteria's posted occupant load is 180. All of it is invented.

Their brief, in part. Purpose: "A family dinner that raises money for the parent group." Maximum: 120 tickets, under the cafeteria's posted 180 (Venue and layout explains why the posted sign governs). Assumed (the parent group's, for this example): the goal is "we cover costs and raise $800"; the group's officers decide money and sign anything the district requires; Dana decides volunteer roles and is the point person on the night.

Open: which officer is authorized to sign the district's facility-use form for the parent group, and whether the form requires a certificate of insurance, settled by the officers and the district; whether the raffle needs a license or registration in the school's state, settled by the state agency's page and the district's policy (Permits and insurance); and how many tickets cover the costs, worked in The budget under the parent group's cost estimates. That calculation shows that, under those estimates, ticket sales alone come in under $800 net, so the raffle answer matters to whether the goal can be met.

Practice: write the brief Practice

Minimum: the five lines from Start here on the brief sheet. Time: 15 minutes for the five lines; up to an hour for the full brief with co-hosts. Materials: the brief sheet, a calendar, and a way to reach any co-hosts.

  1. Write the purpose sentence. Read it to a co-host. If they would write a different sentence, settle it now.
  2. Write the count. A target and a maximum, hosts included.
  3. Write the date, or two or three options. Add the time of day, and next to each date what could rule it out.
  4. Write the place, or the kind of place. Note which of count, date and place is fixed.
  5. Write the ceiling and who pays. One figure, in total.
  6. Write the outcome line. Check it: could you answer it yes or no afterward?
  7. Write who decides. One name for each kind of decision, and one for the day.
  8. Add a decision log row for every open question, with a decide-by date.
  9. Enter the date, count, place and food plan in setup. Leave the date blank if it is still open.
Go deeper

Fill every line, and compare. Fill the must-haves, avoid line and key deadlines. Then read Syracuse's first page and Kean's form against your brief and note any question they ask that you have not answered. For a group with committees, write each committee's terms: what it decides, its chair, its budget share, its decide-by dates and what it brings back.

Your event Your event

Check your work Check your work

Criteria

  • Does the purpose fit in one sentence, and would every host agree with it?
  • Does the count include the hosts, with a target and, for a larger event, a maximum?
  • Is there a date with a time of day, or two or three options with what limits each and a decide-by date?
  • Is the ceiling a total the hosts will not go over without deciding to?
  • Can the outcome line be answered yes or no after the event?
  • Does each kind of decision have one name, and is one person named for the day?
  • For a group: is it written who signs and who approves spending?
  • For a fundraiser: is the goal a net amount?

Worked example

Marcus's five lines pass. His purpose is one sentence. His count is six with himself included, and six is what his table seats with the leaf. His date has times. His ceiling is a total. His outcome line can be checked at the end of the evening: either every guest had a full plate they could eat or not. He names himself for every decision, which is right for a host alone. His brief does not say what he will cook or whether the oven can do it, and it should not: those belong to A dinner party.

Common mistakes

  • Writing the occasion and calling it the purpose. "Mom's 70th" is the occasion. What is the party for?
  • A count that leaves out the hosts, helpers or children. They need seats and food too.
  • A ceiling that is really an estimate. If the number moves every time a quote comes in, it is not a ceiling.
  • "We'll all decide together", with no tie-breaker. Name who decides when the group does not agree.
  • An outcome no one can check. Nobody can say afterward whether "everyone had fun".
  • Signing for a group in your own name without asking. Ask the officers first, and write down the answer.
  • A fundraiser goal written as money taken in. Write the net.

What is still unresolved

The brief's count is rough until Guests and invitations turns replies into a planning number. Whether the place holds that number is settled in Venue and layout. Whether the ceiling holds is settled in The budget. When each task must happen is settled in The planning schedule. For a group, who is liable for a signed contract is settled by the group's officers or an attorney, not by this manual.

Knowledge check and scenario

Why write two or three dates instead of one?
The first-choice date is often not free at the first-choice place, or for the caterer. With options and what limits each written down, you can ask a venue about all of them at once, and the decision log records which one won and why. Syracuse's form asks for alternative dates on its first page for this reason.
What is the difference between the occasion and the purpose?
The occasion is what is being marked, such as a 70th birthday. The purpose is what the event is for, such as gathering the family around the guest of honor. The same occasion can have different purposes, and the purpose is what each later choice is tested against.
Why is "Carmen talks to every grandchild" a better outcome line than "a lovely afternoon"?
It can be checked afterward, and it tells the hosts what to protect when plans change. "A lovely afternoon" has no yes or no answer. The outcome line also becomes the first question at the debrief.
A committee keeps reopening the menu at every meeting. What in the brief helps?
The who-decides line and the decision log. Name who decides the menu, give the decision a decide-by date, and record what was decided and when. A settled row is reopened only on purpose, by the person or group who decides.
Why does a fundraiser's goal go on the brief as a net amount?
Because the money that matters is what is left after costs. The Community Tool Box's example: $50,000 in with $45,000 in costs is a different result from $30,000 in with $5,000 in costs. A gross goal hides the costs that decide whether the event is worth holding.
(Go deeper) What does Ohio State's Event Summary ask that Syracuse's first page does not?
Whether the event will be repeated, who started it, the expected and the actual attendance, and who completed the record and when. It is written after the event, as a record for whoever plans the next one.
A neighborhood association's social committee is planning a fall dinner for 80 in a rented hall. The hall's agreement has a line for the renter's name and signature, and a $500 deposit. The committee chair offers to sign in her own name and pay the deposit on her card, to be repaid later from ticket money. What is the sound next move?
This is common and may work out, but the agreement is then the chair's. Amherst's checklist warns that a person who makes a personal contractual commitment may be personally liable for the contract fee. If ticket sales fall short or the dinner is cancelled, the question of who owes the hall lands on her.
This settles who signs before anyone is committed. If the association can sign, the agreement is the association's. If a person signs anyway, everyone knows it, and the log records who repays what and when. It does not answer whether the signer is liable; that is for the officers or an attorney.
Sharing the deposit spreads the money, but the name on the agreement is still the chair's. It is a reasonable step alongside asking the officers, not instead of it.

Checklist

Records your learning only; it is not a qualification.