Settle direct with the adjuster, sign with a contingency firm, or file it yourself in small claims and keep the whole number

Two firms can both quote you a third of the recovery and pay you different money on the same $60,000 check. The percentage is the part everyone compares, and it is the part least likely to differ; the clauses underneath it, the ones about case costs, about what happens the day a petition gets filed, and about what you owe if you decide partway through that you want someone else, are where the real variation sits. A contingency agreement is a contract you sign at the worst moment of the year, often in a conference room, often within a week of a wreck. It rewards slow reading.
Case costs are the money the firm advances: filing fees, records requests, deposition transcripts, an accident reconstructionist, a treating physician's charge to sit for an hour of questions. Say the case settles at $60,000 with $6,000 in costs and a one-third fee. If the fee is calculated on the gross and costs come out afterward, the fee is $20,000 and you keep $34,000. If costs come off first and the fee is calculated on the remaining $54,000, the fee is $18,000 and you keep $36,000. Same percentage, same costs, $2,000 apart. Oklahoma's Rule of Professional Conduct 1.5(c) requires the written agreement to state which method applies, so the answer is in the document; find the sentence and read it twice.
Most agreements escalate. A common structure runs a third before suit and forty percent after, and some go higher if the case is tried or appealed. What varies, and what a careful reader pins down, is the trigger. Filing the petition in district court is one event. A trial date, a mediation, the first deposition, the defense filing an answer: those are all different events, and some agreements name a trigger that trips within days of the file opening. Ask what has to happen, in plain terms, before the higher number applies, and whether it can trip more than once. Oklahoma caps contingent fees at fifty percent of the net amount recovered under 5 O.S. § 7, which is a ceiling, not a benchmark.
You can fire your lawyer at any time and for any reason. That is not the question. The question is what the agreement says happens next, because a discharged Oklahoma firm can assert an attorney's lien on the claim under 5 O.S. § 6, and the case will not settle cleanly until that lien is resolved. Some agreements say the firm is owed the full contract fee on discharge. Others say the firm is owed the reasonable value of the work done, which is the quantum meruit standard courts generally apply. A reader who expects to be with one firm from start to finish still checks this clause, because the version that promises a full fee to two successive firms is the version that hurts.
The losing case is the other half of the same question. Most Oklahoma firms advance costs and write them off if there is no recovery, but that is a policy, not a law, and the agreement will say. Look for whether costs are forgiven, forgiven only if the firm withdraws, or owed regardless. Then look at the sentence about the settlement floor: some agreements let costs and fees consume everything on a small recovery, and a better-drafted one commits the firm to reduce the fee before your net goes to zero.
Check whether the fee attaches to every source of money or only the liability settlement. Med pay, personal injury protection, and your own uninsured motorist coverage are separate recoveries, and firms treat them differently; property damage is frequently excluded from the fee entirely, and if the agreement is silent, say so out loud and get it written in. Check who is responsible for negotiating medical liens, including a hospital lien filed under 42 O.S. § 43 and any repayment claim from a self-funded employer health plan of the kind the Department of Labor oversees, and whether that work is inside the fee or billed as a cost. Check the settlement authority clause, which should say you decide.
Nothing in a contingency agreement has to be signed the day it is handed to you. Take the copy home, mark the four sentences that carry the money (the cost calculation, the suit-stage trigger, the discharge terms, the lien responsibility), and bring the marked copy back with questions. A firm that answers those questions in specifics is telling you something useful about how it will answer questions later, when the adjuster's first offer arrives and you need to know whether it is close.
The written agreement governs, so anything explained across a desk should also appear on the page you initial. Ask for the amendment. Most firms will make it.