What Should You Do When You Receive a Demand Letter?

What a Demand Letter Actually Is

A demand letter is a formal written notice that someone believes you owe them money or owe them a specific action, and that they intend to pursue legal remedies if you do not resolve it. It is typically the first real signal that a dispute is moving toward litigation. Arizona does not require a demand letter before most business lawsuits, but many contracts and some statutes do require one, and even when it is not required, skipping straight to a lawsuit is rare and expensive for both sides.

Think of it less as an accusation and more as an opening position in a negotiation that happens to be backed by the threat of a lawsuit. The letter is usually written to sound as strong as possible, that is its purpose, and a well-prepared response can reveal exactly how much of that strength is real versus posture.

Step One: Do Not Respond Immediately

The instinct is to fire back a reply right away, especially if the claim feels unfair. Resist it. Anything you put in writing, including an angry email, can become an exhibit later. Take the time to actually understand what is being claimed, what evidence supports it, and what your realistic exposure is before you respond at all.

This is especially true for anyone tempted to respond directly by phone or in a casual email to the person or company that sent the letter. A demand letter has already put the matter on a more formal footing than a typical business disagreement, and treating your response with the same formality protects you.

Step Two: Preserve Everything

The moment you receive a demand letter, you are on notice that litigation is a real possibility. That triggers a duty to preserve relevant documents, emails, texts, and records, even ones that hurt your position. Deleting or losing evidence after that point can create serious problems in litigation that have nothing to do with the merits of the underlying dispute.

This preservation duty extends beyond just documents directly referenced in the letter. Related communications, financial records, and internal notes about the relationship or transaction at issue should all be identified and preserved, since it is often impossible to know in advance exactly what will matter later.

Step Three: Check for a Deadline

Many demand letters set a response deadline, often 10 to 30 days. That deadline is not itself a legal requirement, but ignoring it signals to the other side (and eventually a judge) that you are not taking the claim seriously, and it can shorten your window to negotiate before a complaint gets filed.

If the deadline is unrealistic given the complexity of the claim, a short response acknowledging receipt and requesting reasonable additional time is generally a better move than either rushing a substantive response or letting the deadline pass silently.

Step Four: Assess the Actual Merits and Exposure

Before crafting any response, the real work is evaluating whether the underlying claim has merit, and if it does, what your realistic exposure actually is. This means reviewing the contract or relationship at issue, gathering your own supporting documents, and being honest about the weak points in your position, not just the strong ones.

Many businesses either overreact to a demand letter, assuming it means a lawsuit is imminent and inevitable, or underreact, assuming it is an empty threat. Neither assumption is reliable without actually evaluating the claim, and both lead to worse outcomes than a clear-eyed assessment.

Step Five: Get the Letter Reviewed Before You Reply

A demand letter is a negotiating document, and how you respond is your first move. A rushed, defensive, or overly conciliatory response can weaken your position later. An attorney can help you assess whether the claim has real merit, what your actual exposure looks like, and whether a measured response, a counteroffer, or silence is the right move.

The response itself is often as strategically important as the original letter. A well-crafted reply can shut down a weak claim, correct a factual misunderstanding, or open the door to a reasonable resolution, while a poorly considered one can hand the other side ammunition or unnecessarily escalate the dispute.

Common Mistakes That Make Things Worse

Admitting fault or apologizing in writing before understanding the full picture, ignoring the letter entirely and hoping it goes away, responding with an equally aggressive counter-demand you cannot actually support, and negotiating directly without understanding your real legal position are among the most common mistakes we see business owners make in the days after receiving a demand letter.

When a Demand Letter Becomes a Lawsuit

If a demand letter does not resolve the dispute, the next step is typically a formal complaint filed in Justice Court or Superior Court, depending on the amount in controversy. Responding thoughtfully to the demand letter, rather than reactively, is often what determines whether the dispute settles before it gets that far.

Even when a lawsuit does eventually get filed, a well-handled demand letter exchange is rarely wasted. It typically narrows the actual disputed issues, creates a paper trail useful in later negotiations or at trial, and gives both sides a clearer picture of the other’s position before the cost of litigation kicks in.