Brandon Burke A letter of protection personal injury case usually starts the same way. A client needs medical treatment but can’t pay for it out of pocket. Insurance won’t cover it right away. A letter of protection, or LOP, is the agreement that lets treatment start anyway. The provider treats the client now and gets paid out of the eventual settlement instead of billing upfront.
It’s a routine tool in personal injury practice, but it’s also a common source of client confusion. Months can pass with no bills and no clear update. Clients sometimes read that silence as their case being ignored. Here’s what an LOP is, how it differs from a medical lien, and what to tell clients about it.
What is a letter of protection?
A letter of protection is a written agreement, usually sent by the personal injury attorney to a medical provider. Under an LOP, the provider agrees to treat the client now. In exchange, the provider agrees to be paid directly from the client’s eventual settlement or verdict. That replaces billing the client or the client’s health insurance upfront.
It’s the operational cousin of a letter of representation. That’s the letter an attorney sends an insurer to formally notify them of representation. Both are letters a personal injury firm sends early in a case, but they serve very different purposes.
The mechanics of an LOP are straightforward once you see the sequence:
- The client needs medical treatment but can’t pay for it right away, and insurance won’t cover it promptly, or at all.
- The attorney sends the provider a letter of protection, promising payment from the case’s eventual proceeds.
- The provider treats the client without collecting payment at the time of service.
- When the case settles, the attorney pays the provider directly out of the settlement funds, per the terms in the LOP. The rest goes to the client after that.
Nothing about an LOP is automatic. A provider can decline to accept one. Most only do so for clients represented by an attorney. The agreement depends on a case that’s actually likely to resolve in a payout.
Why personal injury firms use letters of protection
Firms turn to LOPs in one common situation. A client’s ability to pay for treatment doesn’t line up with the treatment the case actually needs. Two situations show up most often. The client has no health insurance, or a plan that doesn’t cover the care needed. Or insurance exists, but coverage is delayed, disputed, or tied up in a separate claims process. That happens when the injury is also part of a workers’ compensation or liability dispute.
Without an LOP, a client in either situation faces a choice: pay out of pocket, skip treatment, or wait. All three can hurt the case. Delayed or interrupted treatment can leave gaps in the medical record. Those gaps make it harder to show a clear link between the accident and the client’s ongoing symptoms. An LOP keeps care moving on the timeline the injury actually calls for, not the timeline the client’s finances allow.
How an LOP differs from a medical lien
Letters of protection and medical liens get used almost interchangeably in casual conversation, but they’re not the same thing.
An LOP is the agreement. It’s the document that creates the provider’s right to be paid from the settlement in the first place. It’s made before treatment happens.
A medical lien is the resulting legal claim itself. It’s the actual claim against the settlement proceeds held by whoever covered the medical bills. That’s usually the provider who treated the client under the LOP. But a lien can also come from a health insurer, Medicare, Medicaid, or another payer that covered bills. That payer has a right to be reimbursed once the case resolves, independent of whether an LOP was ever involved.
A letter of protection is the agreement that lets treatment happen before payment. A medical lien is the legal claim on the settlement that pays for it after.
The table below separates the two:
| Letter of Protection | Medical Lien | |
|---|---|---|
| What it is | An agreement between the attorney and the provider | A legal claim against the settlement proceeds |
| When it exists | Signed before treatment starts | Arises once a provider or payer has a right to reimbursement |
| Who’s involved | Attorney and provider | Provider, insurer, or another payer, against the settlement itself |
| What it settles | Whether and how the provider gets paid | How much of the settlement goes to satisfy the claim |
For more on how liens and other deductions affect what a client actually receives, see how a personal injury settlement gets divided.
What an LOP means for the client
For the client, the practical effect of an LOP is simple. No bills, no collections calls, and no balance due, until the case settles. That’s the whole point. But it creates two specific sources of confusion if nobody explains it upfront.
The first is silence. A client being treated under an LOP won’t get invoices from that provider while the case is open. Months can pass with no bill and no mention of money. Clients who don’t know that’s expected sometimes read that silence as their case being forgotten. It’s actually the LOP working exactly as designed.
The second is a bill from a different provider. Not every provider a client sees is necessarily under an LOP. If a client also visits a provider who wasn’t sent one, they might get billed directly. Their LOP providers stay quiet in the meantime. Without context, that looks inconsistent: why is one provider billing them and not another? Telling the client upfront which providers are on an LOP, and which aren’t, heads off both problems. Otherwise, either one can turn into a phone call.
Why LOP status generates status calls
LOP and provider-payment status is exactly the kind of detail that generates repeat calls to the office. It’s specific, and it involves money. It’s also easy for a client to forget which providers are covered and which aren’t. That’s especially true months into treatment. Add in the silence described above, and a client checking in isn’t being difficult. They’re filling a gap nobody closed for them.
A client portal that shows case and document status gives clients somewhere to check that gap themselves instead of calling. If a client can see which providers are attached to the case and confirm the file is active, that’s usually enough. Most of those routine “is this still moving” calls don’t need to happen. That’s the same logic behind broader client communication best practices for personal injury firms. It pairs with automated case status updates that tell clients when something actually changes, instead of leaving them to guess.
Where CasePulse fits
CasePulse layers a client portal on top of the case management system a firm already uses. That includes Neos, Needles, LawBase, Salesforce, and Litify. It gives clients a place to check case status and see shared documents without calling the office. That’s useful for exactly the kind of “what’s happening with my treatment” question an LOP can raise. It doesn’t negotiate liens, manage LOPs, or handle any of the legal work involved in resolving them. That stays with the firm’s attorneys and staff. What it does is keep clients informed about the parts of the case that are visible and shared. That means fewer of those questions turn into phone calls in the first place.
See the full list of what a CasePulse portal shows clients on the features page, or explore every supported integration. If you want to see how it fits your firm’s specific setup, get started with CasePulse.