Retainer agreements, hourly billing, consultation questions, and the cost of going back to court after a decree, worked out once and written down so the next person can check their own paperwork against something.
The retainer is not a fee. In most states it is a deposit, held in a client trust account that belongs to you until the firm earns against it, and the invoice you receive each month is the document that explains how much of your money moved and why. Reading it carefully is a skill, and it pays for itself quickly, because the entries that raise questions tend to repeat. Catch one in February and you have caught the same one in March, April, and May.
The trust account and the arithmetic that has to close
A proper invoice shows four numbers that must reconcile: the opening trust balance, the fees and costs billed during the period, any payments or transfers applied, and the closing balance. Work through them with a calculator the first time. If the closing figure does not follow from the other three, ask before you pay anything further, because trust accounting is one of the few areas where state bars enforce strict, unglamorous, documented rules. Deposits sit in the trust account, not the firm's operating account, and money moves only after the work is done and billed.
Who did the work, and at what rate
Every time entry should name a timekeeper, and every timekeeper should appear on a rate schedule you were given in the engagement letter. Partner time, associate time, paralegal time, and administrative time are different prices, and the differences are large enough to be worth reading for. A careful reader checks whether the task matches the rate: assembling exhibits, indexing bank statements, calendaring, and filing are paralegal work, and seeing them billed at an attorney rate is the single most common correctable item on a family law bill. Ask for the entry to be reclassified rather than deleted. That request is normal and firms handle it routinely.
Purely clerical work, postage, scanning, converting files, is generally treated as overhead and folded into the hourly rate rather than billed separately. If it appears as a line, ask which category it fell into and why.
Document review, travel, and the entries that need context
Two line items produce most of the confusion. Document review is legitimate and often unavoidable, particularly in a case with a business interest, retirement accounts, or three years of contested spending, but the entry should say what was reviewed and toward what end, not just the phrase itself. Court appearance travel is the other. Many firms bill portal-to-portal at the full rate, some bill travel at a reduced rate, and a few bill only waiting time at the courthouse. The engagement letter settles it, and the invoice should match the engagement letter. Check the hearing date against the entry, because a continued hearing still generates travel.
Costs are separate from fees and pass through at what the firm paid: filing fees, service of process, court reporters, deposition transcripts, and any expert or evaluator. These should be itemized with dates, and receipts should be available on request.
Replenishment, and what the clause actually triggers
Most agreements say that when the trust balance falls below a stated floor, you top it back up to the original figure within a set number of days. The floor is the number to find, because it determines your cash flow for the rest of the case. A matter that burns through the deposit in six weeks will ask for the same deposit again in six weeks, and again after that. Read whether the firm may move to withdraw if you do not replenish, and how much notice you get. Knowing the trigger in advance turns a surprise into a scheduled expense.
The fee arrangements a divorce lawyer may not use
Contingency fees are prohibited in divorce and, in nearly every state, in custody and support matters, meaning no attorney may take a percentage of your property award, your alimony, or your child support. Nonrefundable retainers are restricted or barred in most states; unearned money remains yours. Fees secured by a lien on the marital home are heavily limited. If you see any of these, that is a question for your state bar's ethics line, which exists for exactly this purpose. Separately, the Internal Revenue Service is responsible for the federal tax treatment of legal fees, and the rules for personal family law matters are narrow, so ask before assuming a deduction.
Keep every invoice in one folder, in date order, and read each one within a week of arrival while you still remember the calls and the hearings it describes. Questions asked promptly get answered as bookkeeping. Questions asked at the end of the case get answered as a dispute.