hiring and paying a lawyer to handle an injury claim, and deciding whether a claim needs one

A case that settles for a stated sum does not produce a check for that sum, and the distance between the two numbers is often larger than the fee. Hospitals that treated the injury, health plans that paid for treatment, and providers who agreed to wait for payment all have claims against the money, and most of those claims are asserted before the client sees a disbursement sheet. The useful work happens in the weeks between agreeing a number and signing a release. Here is what a careful reader checks, in the order the money moves.
Every firm prepares a closing statement showing the gross recovery, the fee, case costs, each lien or reimbursement claim, and the net to the client. A client who asks for that document in draft, while there is still time to question a line, is in a different position from one who receives it with a check attached. The draft should identify each payee by name, state the amount originally asserted, state the amount being paid, and show the reduction obtained. If a line says only "medical liens" with a single figure, that is a request for itemization, not a reason for alarm.
Most states let a hospital that treated an accident victim file a lien against the eventual recovery, usually within a set number of days after discharge and usually recorded with a county office or served on the insurer. A perfected lien has to be satisfied from the settlement. A bill that was never perfected is a debt like any other, negotiable on ordinary terms. Lawyers check the filing date, the service requirements, and whether the hospital billed a health insurer first, because a statute that requires billing available coverage can defeat a lien asserted at full chargemaster rates.
When health insurance paid for the treatment, the plan typically claims reimbursement out of the settlement, and the strength of that claim depends almost entirely on what kind of plan it is. A self-funded employer plan governed by federal benefits law often has broad reimbursement rights written into the plan document. A fully insured plan is governed by state law, which in many states limits recovery through made-whole and common-fund doctrines. Medicare and Medicaid recoveries run on their own tracks, and the Centers for Medicare and Medicaid Services is responsible for the conditional payment process that resolves them. The plan document, not the collection letter, controls.
A letter of protection is a lawyer's written promise that a provider will be paid from the settlement, and it is how uninsured clients get surgery, injections, and imaging done while a case is pending. It is also why a client with no out-of-pocket spending can reach settlement owing tens of thousands of dollars. The balance is negotiable, and providers who accepted the risk of a case going badly usually expect to discuss the number at the end. A client should ask, before treatment begins and again before settlement, what the running total is.
Reductions come from specific arguments rather than goodwill. A lien reduced because the policy limits were low and the injuries severe. A health plan reduced under a common-fund rule because the client's lawyer created the recovery the plan is collecting from. A hospital lien reduced because the charges included treatment unrelated to the crash, a category worth auditing line by line. Medicare reduced through the statutory procurement-cost formula. The closing statement should attribute each reduction to a reason, and a client who asks for those reasons will usually get a clearer picture of where the file was worked hardest.
The practical sequence is worth holding onto: the gross recovery pays the fee and costs, then the perfected and statutory claims, then negotiated balances, then the client. Someone who asks for the itemization early, keeps a list of every provider who treated them, and knows whether their health plan is self-funded will follow the accounting closely and be able to question it where questioning is warranted.