Attorney Retainer Agreements: What to Understand Before You Sign

What Is an Attorney Retainer Agreement?

A retainer agreement — sometimes called a fee agreement, engagement letter, or representation agreement — is a written contract between a client and a lawyer or law firm. It is the document that defines the working relationship and what each side is agreeing to.

A retainer agreement usually describes:

• Scope of representation — what legal matter the lawyer is handling, and what is excluded.
• Fee structure — how the lawyer is paid (hourly, contingency, flat fee, or some combination).
• Costs and expenses — who pays for filing fees, expert witnesses, depositions, medical records, and similar costs.
• Billing terms — when invoices go out, when payment is due, and how disputes about bills are handled.
• Termination provisions — what happens if the client or the lawyer ends the relationship before the matter is resolved.

Most state bar rules require certain fee agreements — particularly contingency fee agreements — to be in writing and signed by the client. Even where a writing is not strictly required, a written agreement protects both sides. For broader background on what to expect once representation begins, see what happens after you contact a lawyer? and how lawsuits work.

Common Types of Legal Fee Agreements

Different cases use different fee structures, and the same lawyer may use different arrangements for different types of matters. The structure should match the case — a flat fee that works for a routine will is rarely the right structure for complex litigation, and vice versa.

Contingency Fee Agreements

The lawyer is paid a percentage of the recovery — typically a settlement or judgment — only if the case is successful. Contingency fees are common in personal injury, mass tort, and certain employment cases. If there is no recovery, the client typically owes no attorney fee, though they may still owe case costs depending on the contract. For context on how mass-tort and class cases are organized, see mass torts and class actions.

Hourly Fee Agreements

The client pays for the lawyer's time at a stated hourly rate, usually billed in tenth-of-an-hour increments. Hourly billing is common in business disputes, family law, criminal defense, and complex litigation. It is often paired with a retainer deposit held in a client trust account and drawn down as the lawyer earns the fee.

Flat Fee Agreements

One fixed price for a defined piece of work — for example, drafting a will, handling a routine real-estate closing, or representing someone at a single hearing. Predictability is the main benefit; the trade-off is less flexibility if the matter becomes more complex than originally expected.

Hybrid Fee Arrangements

A combination of structures. A common example is a reduced hourly rate plus a contingency percentage on any recovery, or a flat fee for early-stage work followed by hourly billing if the matter goes to litigation. Hybrid agreements are useful when neither pure hourly nor pure contingency fits the risk profile of the case.

True Retainers and Advance Fee Deposits

The word "retainer" gets used loosely. A "true retainer" is a payment to secure the lawyer's availability and is usually earned on receipt. An "advance fee deposit" — much more common — is money paid upfront, held in trust, and drawn down as the lawyer earns it. Refundability rules differ between the two and between states.

Terms to Review Carefully Before Signing

The fee structure is only one piece of a retainer agreement. Several other clauses can have a meaningful effect on cost, control, and risk. The list below covers terms worth reading slowly.

• Attorney fee percentage or rate. For contingency cases, what percentage does the lawyer receive? Does it change if the case settles before a lawsuit is filed, after filing, or after trial? For hourly cases, what is the rate, and does it differ for partners, associates, and paralegals?
• Case costs and litigation expenses. Filing fees, court reporter fees, expert witnesses, medical record retrieval, deposition transcripts, and travel can add up quickly. The agreement should say who advances these costs and who is ultimately responsible for them.
• Whether costs come out before or after the attorney fee. If the contingency percentage is calculated on the gross recovery (before costs are deducted), the client's net is typically smaller than if the percentage is calculated on the net (after costs). On the same settlement, the difference can be significant.
• Medical liens and reimbursement obligations. In injury cases, health insurers, Medicare, Medicaid, and medical providers may have a right to be repaid out of any settlement. The agreement should explain whose job it is to identify, negotiate, and resolve those liens.
• Referral fees and co-counsel arrangements. The lawyer the client first speaks with may not be the lawyer who actually handles the case. The retainer agreement should disclose whether another lawyer or firm will be involved, whether fees will be shared, and whether the client's total fee will go up because of it.
• Arbitration and dispute-resolution clauses. Some agreements require any dispute between the client and the firm — including fee disputes and, where state law allows, malpractice claims — to be resolved through arbitration rather than in court. These clauses can affect procedural rights.
• Withdrawal and termination provisions. What happens if the client wants to fire the lawyer? What happens if the lawyer wants to withdraw? Will the client owe anything for work already done? Will the lawyer assert a lien on any future recovery?
• Client file access. Clients are generally entitled to their file, but the agreement may set out the process — including who pays for copying, what happens with electronic records, and how quickly the file is delivered when requested.
• Settlement authority. In nearly all U.S. jurisdictions, the decision to accept or reject a settlement offer belongs to the client. Some agreements include language that, while not waiving that right, can blur it in practice.
• Whether the lawyer may associate other firms. Some agreements give the firm broad authority to bring in additional lawyers or firms without further written consent. Others require the client's specific approval. Either approach is legitimate; the client should know which one they are agreeing to.

For a broader sense of how cases progress and what kinds of records typically come up, see what evidence helps a lawsuit?.

Why Some Agreements May Feel One-Sided

Retainer agreements are usually drafted by the law firm. Like most form contracts, they tend to favor the party who wrote them.

Some agreements may shift more financial risk, decision-making control, or uncertainty to the client than the client expected. Those terms may be worth asking about before signing.

That does not necessarily make an agreement improper or unenforceable — many of those terms are standard, lawful, and openly disclosed. But "standard" and "in your interest" are not the same thing. A client is allowed to ask questions, request changes, or take the agreement to another attorney for a second look before signing. A reputable firm will not be offended by any of those things.

Questions to Ask Before Signing a Retainer Agreement

Most of these questions can be asked in a short phone call or email, and the answers should be available in writing in the retainer agreement itself. If a firm is unwilling to answer any of them clearly, that itself is useful information.

• What percentage will the lawyer receive if the case settles, and does that percentage change at different stages of the case?
• Who pays case costs if there is no recovery?
• Are costs deducted from the settlement before or after the attorney fee is calculated?
• Will another lawyer or law firm work on the case, and will their involvement change my total fee?
• Is there a referral fee or fee-sharing arrangement, and how is it disclosed?
• Can I end the attorney-client relationship, and what would I owe if I did?
• What happens if the lawyer or the firm withdraws from the case?
• Will I owe anything to my current firm if I change lawyers later?
• Who has authority to accept or reject settlement offers?
• How often will I receive case updates, and how will I receive them?

When to Seek Independent Legal Advice

Most clients do not get a second lawyer to review their retainer agreement, and in straightforward matters there may be no need to. Independent advice can be worth the time and cost when:

• The fee terms are not clear, or the client is unsure how the percentage actually applies.
• The claim is large, complex, or involves multiple defendants.
• Case costs could be significant — for example, in cases involving expert witnesses or extensive medical records.
• Multiple firms are involved, or the agreement contemplates referral fees.
• The client feels rushed or pressured to sign quickly.
• The agreement contains arbitration, lien, or reimbursement language the client does not fully understand.
• The client is replacing a prior attorney, and the prior firm may assert a lien on the recovery.

An independent lawyer is not there to second-guess the firm the client wants to hire. Their job is to make sure the client understands what they are signing.

Common Questions People Ask

What is an attorney retainer agreement?

It is a written contract between a client and a lawyer or law firm. It usually describes the scope of representation, the fee structure, who pays case costs, billing terms, and what happens if the attorney-client relationship ends before the case is over.

What are the most common types of legal fee agreements?

The most common structures are contingency fee agreements, hourly fee agreements, flat fee agreements, hybrid arrangements that combine elements of those, and true retainers or advance fee deposits paid upfront and held in a client trust account.

Are case costs deducted before or after the attorney fee?

It depends on the contract. If costs are deducted before the contingency percentage is calculated, the client typically nets more than if the percentage is calculated on the gross recovery first. The retainer agreement should state which method applies.

What questions should someone ask before signing a retainer agreement?

Common questions include: what percentage the lawyer will receive, who pays case costs if there is no recovery, whether costs are deducted before or after the attorney fee, whether another firm or referring attorney will share fees, what happens if the client or lawyer ends the relationship, who has settlement authority, and how often the client will receive case updates.

When should someone get a second opinion before signing?

Independent legal advice can be useful when fee terms are unclear, when the claim is large or complex, when case costs could be significant, when multiple firms are involved, when the client feels rushed, when the agreement contains arbitration or lien language, or when the client is replacing a prior attorney who may assert a lien on any future recovery.