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

Most of the arithmetic in an Oklahoma car crash claim is settled before anyone negotiates. The deadline is fixed by statute, the other driver's coverage is fixed by whatever policy he bought, and your own uninsured motorist coverage is fixed by a form you signed years ago and probably never read again. A lawyer can argue about the value of your neck. He cannot argue money into a policy that does not have it. So the first useful hour you spend on the claim is spent reading, not calling.
Oklahoma gives you two years from the date of injury to file suit on a personal injury claim, under 12 O.S. § 95(A)(3), and the same two years applies to property damage and, under 12 O.S. § 1053, to wrongful death. That clock does not pause because an adjuster is being pleasant, because you are still in physical therapy, or because you have not decided whether to hire anyone. Different clocks run against different defendants: a claim against a city or state agency runs through the Governmental Tort Claims Act, with notice deadlines measured in months rather than years, which is why an unusual defendant deserves a calendar entry of its own.
A claim against your own insurer for uninsured or underinsured motorist benefits is a contract claim, not a tort claim, and contract claims on a written policy carry a longer period under 12 O.S. § 95(A)(1). That sounds like breathing room, and sometimes it is, but policies frequently contain their own notice and suit provisions, and an insurer that was never told about the wreck has an argument about prejudice. The careful move is to open the UM claim early, in writing, and keep the two-year tort deadline as your working date regardless of what the contract clock allows.
Oklahoma's compulsory minimum liability limits are $25,000 per person, $50,000 per accident, and $25,000 for property damage, set by 47 O.S. § 7-324. A great many drivers carry exactly that and not a dollar more. One night in a hospital with imaging, an emergency physician, and a specialist consult can consume most of $25,000 before anyone discusses lost wages or a herniated disc. When the medical bills alone approach the limit, the negotiation stops being about proving your damages and becomes about confirming coverage, checking for a second policy, and getting the carrier to tender.
Under 36 O.S. § 3636, an Oklahoma insurer has to offer uninsured and underinsured motorist coverage, and you may reject it, but the rejection has to be in writing. Pull your declarations page and find the UM line. If it says $25,000, that is very close to the top of what any lawyer can recover from a minimum-limits defendant who has no house and no wages worth garnishing. If it says $100,000 or $250,000, the case has room, and the analysis of whether a contingency fee earns its share changes completely. The National Highway Traffic Safety Administration oversees federal vehicle safety standards, but nothing federal fills a coverage gap; your declarations page does.
Oklahoma follows modified comparative negligence under 23 O.S. § 13, so a jury's allocation reduces your recovery proportionally and bars it entirely if you are found more than fifty percent at fault. After that come the liens: a hospital lien perfected under 42 O.S. § 43, SoonerCare subrogation, an ERISA plan's reimbursement claim, and any med-pay your own carrier advanced. A careful reader lists these before signing anything, because a $25,000 policy limit, minus a one-third contingency fee, minus a negotiated hospital lien, produces a number you should see on paper first.
Read the declarations page, write the two-year date on the calendar, and ask the adjuster in writing to confirm the at-fault limits. Those three steps take an afternoon, cost nothing, and tell you most of what a consultation would. The lawyer question answers itself once you know the size of the pot.