How Contractors Turn Good Debts Into Bad Debts—One Email at a Time

A contractor may have an excellent collection case on Monday morning and substantially damage it before lunch

The contract is signed. The work was performed. The invoices are supported. The customer has not paid. Then the contractor receives an irritating email disputing the bill and immediately fires back a response.

That response may become one of the most important exhibits in the case.

In my firm’s construction and commercial collection matters, I frequently review email chains that began as ordinary efforts to obtain payment. Unfortunately, a contractor sometimes writes something that creates uncertainty where none previously existed. He may concede a backcharge, admit that the work was incomplete, agree to accept less, extend a deadline, contradict his own contract, or accidentally create a settlement.

The underlying debt may still be enforceable. But what should have been a relatively straightforward case is now a more expensive and complicated one.

The examples below are composites based on recurring issues I have encountered in actual collection matters.

An Email Is Not “Just an Email”

Florida law generally does not deny legal effect to a record, signature, or contract merely because it is electronic. An email can therefore be evidence of an agreement, a modification, a waiver, an admission, or the parties’ understanding of their contract.

That does not mean every casual sentence automatically changes a written contract. It does mean that the debtor’s lawyer will read the entire email chain looking for language that can be used to argue that it did.

Before pressing “Send,” assume that the email will eventually be enlarged on a courtroom screen and read aloud to a judge.

Mistake No. 1: Expressing Uncertainty About the Amount Owed

Consider this email:

I know the invoice says $18,400, but I have to go back through everything. I may have included a few things twice. Just send me what you think is fair and we can figure out the rest later.

The contractor may merely be trying to sound reasonable. The debtor’s lawyer may characterize it differently:

• The contractor admitted that the invoice might be inaccurate.

• The contractor could not identify the amount due.

• The amount was never finally agreed upon.

• The debtor was invited to decide what constituted fair payment.

• The contractor’s present demand is inconsistent with his earlier position.

This is especially damaging when the contractor’s own records were accurate before the email was sent.

A better response would be:

Our present records reflect an unpaid balance of $18,400. Please identify in writing each specific item you dispute and the factual and contractual basis for the dispute. Nothing in this correspondence waives any portion of the balance or any contractual or statutory remedy.

If a reconciliation is genuinely necessary, say so without conceding that the existing invoice is wrong:

We are reviewing the account to determine whether any additional amounts, credits, interest, or charges should be included. The currently invoiced balance remains due unless and until we confirm an adjustment in writing.

Mistake No. 2: Accidentally Accepting a Discounted Settlement

A debtor writes:

I disagree that I owe $12,000, but I can pay $7,500 next Friday and put this behind us.

The contractor answers:

Fine. Get me the $7,500 next Friday.

The contractor may believe that he has merely continued negotiations. The debtor may argue that the parties reached a binding settlement.

The danger becomes greater when the correspondence identifies the amount, payment date, claims being resolved, and other essential terms. The contractor may also create trouble by cashing a check tendered as full satisfaction of a disputed claim. Florida’s accord-and-satisfaction statute addresses circumstances in which a claimant obtains payment of an instrument tendered in good faith as full satisfaction of a disputed or unliquidated claim.

A safer response would be:

I am willing to consider a settlement payment of $7,500, provided that all settlement terms are contained in a written agreement acceptable to me and my counsel. No settlement will exist unless and until the agreement is signed by all required parties and the settlement funds have cleared. Until then, all rights and remedies are expressly reserved.

The words “for settlement purposes only” can be helpful, but they are not magic. Florida law limits the use of compromise negotiations to prove liability or the value of a disputed claim, but that rule does not give a contractor permission to write carelessly or prevent the formation of an actual settlement.

Mistake No. 3: Conceding Backcharges or Setoffs

Backcharges are common in construction disputes. They are also frequently asserted without adequate documentation, contractual authorization, advance notice, or a signed change order.

A general contractor may write:

We deducted $24,000 for delays, cleanup, supervision, and corrective work. Your revised balance is $9,000.

The subcontractor responds:

I understand the deductions, but I still think you should pay me at least $15,000.

The words “I understand the deductions” may have been intended to mean, “I understand what you are claiming.” They may instead be portrayed as acknowledgment that the deductions were legitimate.

In one recurring type of matter handled by my firm, a substantial portion of the claimed debt depended upon defeating supposed backcharges supported by unsigned or disputed change orders. A careless email accepting the “adjusted balance” could have materially undermined an otherwise strong claim.

A better response would be:

We dispute the asserted backcharges and do not agree that they are factually or contractually valid. Please provide the contractual provision authorizing each deduction, the date notice was given, the supporting invoices and time records, and all documents showing that the expense was actually incurred. Our demand for the full unpaid balance remains unchanged.

Do not negotiate from the other side’s number unless you clearly state that you reject the deductions.

Mistake No. 4: Admitting Defective or Incomplete Work

A customer complains that the installation is uneven, unfinished, delayed, or defective.

The contractor replies:

Yes, I know the roof looks wavy. That is just how it came out. But you still have to pay me.

That sentence may become the debtor’s favorite exhibit.

Even where there is a legitimate explanation—preexisting structural conditions, owner-selected materials, work performed by another trade, lack of access, or refusal to authorize corrective work—the contractor has just made an unqualified admission of a defect.

Other dangerous statements include:

I know we never completed the electrical portion.

We probably should have replaced that section.

My crew made a mess, but your balance is still due.

I agree the job did not come out the way we expected.

A contractor should not lie or deny an obvious problem. He should separate the allegation from the payment obligation and avoid making conclusions before investigating:

We do not agree with your characterization of the work. Please identify each alleged defect with sufficient detail and provide photographs showing the condition. We will review the allegations under the contract’s inspection, warranty, and notice provisions. That review does not constitute an admission of defective or incomplete work and does not waive the outstanding payment obligation.

In many cases, the contract distinguishes between a payment obligation and a warranty or punch-list issue. Do not erase that distinction in an email.

Mistake No. 5: Contradicting the Contractual Relationship

One of the strangest problems I have encountered involved a business that had accepted a substantial deposit and later claimed that it did not have a contract with the person who paid it. At the same time, the business discussed issuing a refund “minus fees.”

Those inconsistent positions can transform a straightforward contract dispute into a fight over contractual privity, unjust enrichment, the identity of the customer, and the basis for retaining the money.

The same problem appears when a contractor writes:

Technically, our agreement was with the builder, not you, but you still owe us.

Or:

There was never really a contract. We just agreed that I would do the job.

Or:

The written proposal was only an estimate and never controlled anything.

Before making a statement about who contracted with whom, review the proposal, signature page, invoices, payments, change orders, permits, emails, and the parties’ actual course of dealing.

Do not casually disclaim the very contract you may later need to enforce.

Mistake No. 6: Changing the Due Date or Waiving a Default

A payment is due on June 1. The customer says that money is tight.

The contractor responds:

No problem. Pay me whenever you can.

Several months later, the contractor wants to declare a default, accelerate the balance, charge interest, or enforce a time-sensitive remedy.

The customer responds with the contractor’s own email.

Other dangerous versions include:

Don’t worry about the deadline.

We can revisit this after the project closes.

I won’t take any action while you try to get financing.

Just start sending something each month.

A reasonable accommodation should be definite and conditional:

Without waiving the existing default, I am willing to refrain from filing suit through July 15, provided that you pay $5,000 by June 15 and the remaining balance by July 15. This temporary accommodation does not amend the contract or waive interest, attorney’s fees, lien rights, acceleration rights, or any other remedy. If either payment is not timely received in cleared funds, I may proceed without further notice.

Ambiguity is the enemy. State the amount, date, conditions, consequences of nonpayment, and rights being reserved.

Mistake No. 7: Expanding the Scope of Work or Warranty

A contractor trying to calm an unhappy customer writes:

I will take care of everything at no charge.

What is “everything”?

Does it include work outside the original scope? Damage caused by another contractor? Upgrades?

Consequential damage? A complete replacement? Work after the warranty period?

The better response is specific:

Although we dispute that the condition resulted from our work, we are willing to inspect the identified area and, if appropriate, perform the corrective work required by Section 12 of the contract. This offer does not expand the original scope of work, create a new warranty, or constitute an admission of responsibility.

A helpful gesture should not become an unlimited contractual undertaking.

Mistake No. 8: Treating a Promise to Pay as Protection Against a Lien Deadline

A contractor hears:

We will get you paid. Give us another 30 days.

The contractor agrees and waits.

Unfortunately, a promise to pay does not mean that statutory deadlines stop running. Florida’s Construction Lien Law generally requires a claim of lien to be recorded within the statutory period tied to final furnishing, and a recorded lien ordinarily must be enforced within one year unless the period is shortened through another statutory procedure.

The contractor should not assume that an email extension changes those deadlines.

A safer response would be:

I am willing to continue discussing payment, but no extension or payment discussion waives or extends any statutory notice, lien, bond, arbitration, limitations, or filing deadline. We will take any steps necessary to preserve our rights while discussions continue.

The same principle applies to notices to owner, payment-bond claims, contractual notice provisions, arbitration demands, and suit limitations. Calendar the deadline independently of the negotiation.

Mistake No. 9: Carelessly Releasing Lien or Bond Rights

A contractor receives a progress payment and writes:

Thanks. We are all square through today and you do not have to worry about a lien.

But the payment did not include retainage, pending change orders, disputed extras, stored materials, interest, or work performed by a lower-tier subcontractor.

Florida law provides forms for progress- and final-payment lien waivers and permits a lien waiver given for a check to be conditioned upon payment of the check. It also recognizes that a waiver that departs from the statutory forms may be enforced according to its own terms.

That makes improvisation dangerous.

Use a properly prepared conditional waiver identifying:

• The exact payment;

• The through-date;

• The project and property;

• The customer;

• Retainage and excluded items;

• Pending change orders or disputed amounts; and

• The requirement that funds actually clear.

Do not create your own informal “full release” in the body of an email.

Mistake No. 10: Making the Debtor’s Case for Him

A contractor may become angry and write a five-page response addressing every accusation.

In doing so, he may supply facts the debtor did not previously know:

• The contractor was understaffed.

• Materials arrived late.

• A permit problem existed.

• A subcontractor had not been paid.

• The contractor used project money elsewhere.

• The contractor did not document a change order.

• The contractor missed an inspection.

• The contractor’s own records contain inconsistent balances.

The desire to “set the record straight” can produce a roadmap for defenses and counterclaims.

Often the correct response is much shorter:

We dispute the allegations in your email. Our records reflect an unpaid balance of $____ under the parties’ contract. Please provide the specific documents supporting any claimed defense, offset, or backcharge. All rights and remedies are reserved.

You do not have to try the case in the inbox.

A Practical Rule: Do Not Respond While Angry

When a collection email makes you angry:

1. Draft the response.

2. Do not send it.

3. Remove the insults, accusations, speculation, and unnecessary history.

4. Verify the contract, balance, dates, and parties.

5. Ask whether any sentence changes the agreement, admits a defense, or waives a remedy.

6. Send the shortest accurate response that advances the collection.

A good collection email should normally accomplish only a few things: state the amount demanded, reject unsupported defenses, request documentation, establish a deadline, preserve rights, and move the matter toward payment.

Using Artificial Intelligence Before You Press “Send”

A contractor who is not ready to retain a lawyer for every payment email should at least consider using an artificial-intelligence tool as a first review.

ChatGPT can prepare an initial draft. A second model, such as Claude or Grok, can then be used to attack that draft from the debtor’s perspective. The revised version can be returned to ChatGPT for a final rewrite.

This “tech stacking” process is not a substitute for legal advice. It is, however, usually safer than dictating an angry response from a truck and sending it without review.

Here is a prompt that contractors can save:

I am a Florida contractor attempting to collect an unpaid balance. Act as a cautious construction collections lawyer reviewing my proposed email. Do not invent facts or assume facts that I have not provided.

Identify every sentence that could:

1. Admit defective, delayed, or incomplete work;

2. Concede a backcharge, offset, credit, or deduction;

3. Change or modify the contract;

4. Waive a default, deadline, interest, attorney’s fees, retainage, lien rights, bond rights, arbitration rights, or other remedies;

5. Create, accept, or imply a settlement;

6. Misstate the balance, the contracting parties, the scope of work, or the project history;

7. Expand my warranty or promise additional free work;

8. Make an improper or unsupported threat; or

9. Damage my credibility in future litigation.

Then rewrite the email so that it is accurate, professional, concise, and preserves all rights. Clearly distinguish any settlement proposal from the underlying amount claimed. State that no settlement exists unless all terms are placed in a signed written agreement and any required payment clears.

Before giving me the final version, make sure my collections lawyer would not be upset at me for writing or sending it. Ask me questions when important facts are missing.

For the second-model review, use this prompt:

Act as the debtor’s lawyer. Read this proposed collection email and identify every statement you could use to dispute the debt, reduce the amount owed, establish a modification or waiver, support a counterclaim, or impeach the contractor. Be hostile but legally realistic. Do not rewrite the email yet.

Do not upload Social Security numbers, bank-account information, customer financial data, privileged communications with your lawyer, or other unnecessary confidential information. Replace names and addresses with labels when possible.

When to Stop Writing and Call a Lawyer

A contractor should strongly consider having counsel take over before responding when:

• The customer alleges defective work, fraud, abandonment, licensing violations, or building-code violations;

• The customer asserts substantial backcharges or consequential damages;

• A lien, bond, notice, arbitration, or limitations deadline may be approaching;

• The customer offers a discounted payment in exchange for a release;

• A check is marked “payment in full”;

• Multiple contracts, companies, owners, or projects are involved;

• The balance has changed between invoices or accounting records;

• The contractor is unsure who legally owes the money; or

• The email chain already contains damaging statements.

The cost of reviewing one email is usually far lower than the cost of litigating what that email meant.

The Bottom Line

A good debt is supported by a clear contract, documented performance, accurate invoices, and consistent communications.

A bad email can place every one of those things in dispute.

Before sending a collection email, ask:

Could the customer’s lawyer use this sentence to argue that I agreed to receive less, admitted a defect, accepted a backcharge, extended a deadline, changed the contract, or waived a remedy?

When the answer might be yes, do not press “Send.”

Have the email reviewed, use an AI tool cautiously, or contact a construction collections lawyer before turning a collectible receivable into an avoidable lawsuit.

The Law Office of Ari Mendelson LLC assists Florida contractors and businesses with unpaid accounts, construction liens, payment disputes, demand letters, settlements, and collection litigation.

This article provides general information and is not legal advice. Every contract, project, email chain, and collection matter is different. Reading this article does not create an attorney-client relationship.