A clause-by-clause read of a standard family law engagement letter, from evergreen replenishment and billing increments to withdrawal terms and the return of unused funds.

The engagement letter usually arrives at the worst possible moment, a day or two after a first meeting that left you shaken, with a request for a wire or a cashier's check and a note that the attorney can't file anything until the deposit clears. Most people sign it in the parking lot. The document is short, four to eight pages in a typical county practice, and almost every provision that will cost you money later is on those pages in ordinary English. Reading it carefully takes about twenty minutes. That is the cheapest twenty minutes in the whole case.
The first substantive clause names a number and calls it a retainer, an advance fee deposit, or a trust deposit. What matters is the sentence after it. An evergreen retainer requires you to restore the trust balance to its original level, or to some stated floor, whenever it drops below a trigger amount, often on demand and often within ten or fifteen days. That means the initial figure is not the price of the case; it is the size of the tank, and you refill it as long as the case runs. Check the trigger, the deadline, and whether failure to replenish is itself grounds for the attorney to withdraw. Many agreements say exactly that.
Nearly every family law firm bills in tenths of an hour, six minutes, and rounds up to the next increment. A two-minute phone call is billed as six. That is defensible and standard, but it compounds: fifteen short exchanges in a busy week become an hour and a half of billable time whether or not ninety minutes passed. A quarter-hour minimum, which still appears in some agreements, roughly doubles that effect. Look for the increment, look for whether emails are billed separately from the time spent drafting them, and look for any flat charges for copying, postage, or file storage that sit outside the hourly structure.
The rate table is where a careful reader spends the most time. A partner rate, an associate rate, and a paralegal rate are normal, and the paralegal rate is usually a real saving, since document assembly, discovery indexing, and exhibit preparation do not need a lawyer. What you want to know is who decides the assignment and whether the letter promises anything about it. Ask whether the attorney you met will personally attend hearings and mediations, whether an associate may appear in her place, and whether you are notified before a new timekeeper is added. Also check whether travel time to a distant district courthouse bills at the full rate or half.
Every engagement letter reserves the right to withdraw, and the listed grounds are broad: nonpayment, a breakdown in communication, a client who insists on a position the attorney considers unsupportable. Withdrawal in a pending case requires the court's permission, and a judge close to trial may decline, which protects you somewhat. Read what happens to your file, what the copying charge is, and whether the firm asserts a lien on the file or on any property recovered. Your own right to terminate is usually unrestricted, and it should be stated plainly. If it isn't, ask for a sentence that says so before you sign.
Unearned funds in trust belong to you and are refunded when the matter closes. The distinction that matters is between a deposit held in trust against future hourly work and a nonrefundable engagement or availability fee, which some agreements carve out as earned on receipt. If your letter contains both, know which dollars are which. Ask how long a final accounting takes after the decree, how the refund is delivered, and whether monthly statements will itemize each charge with a date, a timekeeper, and a description. If you plan to fund fees with a credit line or a card, the Consumer Financial Protection Bureau is the federal agency responsible for consumer credit products, and the interest cost belongs in your estimate alongside the retainer itself.
Bring the letter home. Mark the replenishment trigger, the increment, the rate table, the withdrawal grounds, and the refund clause, then send your questions in one email and ask for written answers. A firm that welcomes that exchange is telling you something useful about how the next eighteen months will go.