One person's working-out of how a marriage is legally ended in the United States, from filing alone to a contested trial. Nothing here is advice about a particular case; state rules differ, sometimes sharply.
The single biggest cost decision in a divorce gets made in the first month, usually without anyone framing it as a decision at all. You pick a route, or you drift into one, and that route sets the floor on what the whole thing will cost and how long you will live inside it. There are four routes in common use, and they are not four flavors of the same thing: they differ by an order of magnitude in money and by a year or more in elapsed time. What determines which one fits is not temperament. It is facts.
Filing on your own when nothing is genuinely in dispute
Every state provides a way to end a marriage without a lawyer, and in a case with no children, no real estate, no retirement accounts worth dividing and no debt either party contests, that route works as designed. The out-of-pocket cost is the court's filing fee, set by statute and published on the clerk's website, plus service of process and possibly a parenting class if minor children are involved. Elapsed time is dominated by the waiting period your state imposes between filing and final judgment, which can run from a few weeks to six months or longer. The forms are the easy part. Knowing what belongs on them is not.
The failure mode here is a settlement agreement that reads fine and executes badly. A decree that says one spouse keeps the 401(k) does not move a dollar; that takes a separate qualified domestic relations order, drafted correctly and accepted by the plan administrator. A decree that says one spouse will refinance the house does not bind the lender. The IRS is responsible for how filing status, dependency claims and retirement transfers are treated after a divorce, and those consequences follow the decree rather than being fixed by it.
Buying an attorney's hours without buying the whole case
Limited-scope representation, sometimes called unbundled service, sits between doing it alone and handing over the file. You pay for specific tasks: a document review, a drafted marital settlement agreement, a QDRO, an hour of strategy before a hearing you will attend yourself. Most states permit it explicitly, and many family law attorneys will quote a flat fee for discrete work even when they will not take the case whole. The economics are straightforward. You are paying for judgment on the three or four points where being wrong is expensive, and doing the clerical work yourself.
This is the route most commonly underused, largely because people assume the choice is binary. It works best when the disagreement is narrow and both parties are still speaking. It works badly when the other side has full representation and yours is intermittent, because opposing counsel will set the pace of the case and you will be reacting to deadlines without anyone tracking them for you.
Mediation, and what it does to the calendar
In mediation, a neutral third party, often a retired judge or an experienced family attorney, works through the disputed items with both spouses until an agreement exists on paper. The mediator's hourly rate is typically split, and sessions are measured in hours rather than months, so the total is a fraction of a litigated case. Many courts now order mediation before they will set a contested trial date, which means you may end up there regardless. Going voluntarily, early, is cheaper than going under order after discovery has already been paid for.
Mediation depends on both parties disclosing honestly, because the mediator has no subpoena power and cannot compel production of a bank statement. It handles complexity well when the complexity is emotional. It handles concealment badly.
Full representation in a contested case
Here the cost structure changes shape entirely. You sign a retainer, the firm bills against it in increments, and you replenish it when it runs low. What drives the number is not the filing but discovery: interrogatories, document requests, depositions, subpoenas to employers and banks, and expert work such as a business valuation or a custody evaluation. Firms that advertise as Divorce Lawyers differ widely in what they will take on and how they staff it, and the difference between a partner's rate and a paralegal's rate on routine work compounds fast across a year. A contested case commonly runs a year or more from filing to judgment, and the great majority still settle before trial.
What moves a case up the ladder
Four facts do most of the work. Minor children, because custody and support are decided under a best-interests standard that generates argument and often an evaluator. A closely held business, because valuation is contested by definition and requires an expert on each side. A house with equity and a joint mortgage, because dividing it means either a refinance one party may not qualify for or a sale neither party wants on the other's timeline. And a spouse moving money, which converts a negotiation into an investigation and makes formal discovery the only reliable tool available.
None of these guarantees a trial. What they do is raise the floor: they make limited-scope help the minimum sensible spend rather than an upgrade, and they make an early, honest financial disclosure worth more than any argument made later.
Pick the route from the facts you actually have, not from the relationship you hope to preserve or the one you are angry about. The route can also change midway, downward as often as upward, and a case that starts with full representation frequently finishes at a mediator's table for a fraction of what a trial would have cost.