Sued by a Contractor or Landlord in New Mexico Small Claims Court

Most small claims lawsuits in New Mexico fall into a few predictable categories: contractor work gone wrong, landlord-tenant money disputes, and used car sales that ended badly. If you've been served in one of these cases, the defense playbook varies depending on the facts — but the procedural framework is the same across all of them.

Contractor Disputes

A homeowner sues you (the contractor) for defective work, cost overruns, or an unfinished project. Or you're the homeowner, and the contractor is suing for an unpaid balance. These cases hinge on what was promised, what was delivered, and what documentation exists.

If you're the contractor being sued: Your defense often centers on scope-of-work changes that the homeowner approved verbally or in writing. Gather text messages, emails, and change orders that show the homeowner agreed to modifications or additional costs. Photos documenting your work at each stage help counter claims of defective workmanship. If the homeowner still owes you money for the same project, file a compulsory counterclaim — under Rule 1-013(A) NMRA, you must raise it now or lose it permanently.

If you're the homeowner being sued for nonpayment: Your affirmative defenses might include failure of consideration (the contractor didn't finish or delivered defective work), accord and satisfaction (you agreed to a reduced price that you paid), or set-off (the cost to fix the contractor's mistakes exceeds the unpaid balance). Get repair estimates from other contractors to document the remediation costs.

Landlord-Tenant Money Claims

These are civil money claims — not evictions. A former landlord sues you for property damage beyond normal wear and tear, unpaid rent, or lease-break fees. Or you're suing the landlord for your unreturned security deposit. The distinction from eviction matters: eviction actions under the UORRA follow a compressed 7–10 day timeline, while ordinary money claims give you 20 days to respond, or 23 days after qualifying certified-mail service using Form 4-208.

Security deposit disputes are among the most common. Under NMSA § 47-8-18, landlords must return the deposit and provide an itemized written list of deductions within 30 days after the lease terminates or the resident leaves, whichever is later. A landlord cannot keep a deposit for normal wear and tear. If your former landlord is suing for damage costs that exceed your deposit, your defense might be that the "damage" was normal wear and tear, that the landlord failed to provide the itemized deduction list, or that the landlord's repair costs are inflated.

Counterclaims in tenant cases are often compulsory. If the landlord sues you for apartment damage and you believe they owe you deposit money from the same tenancy, that counterclaim arises from the same transaction and must be included in your answer.

Evidence that helps: your move-in and move-out inspection photos, the lease agreement, any written correspondence about the deposit, and the landlord's itemized deduction statement (or evidence they never sent one).

Car Sale Disputes

A buyer sues you over mechanical problems, a failed emissions test, or title transfer issues with a vehicle you sold privately. These cases are extremely common in Magistrate Courts across New Mexico.

"As-is" sales may make the bill of sale and disclosures relevant to the dispute. Bring the bill of sale and any text messages about the car's condition or known problems. Don't assume an "as-is" label resolves every claim.

Affirmative defenses in car cases often include accord and satisfaction (the buyer accepted a price reduction that accounted for the car's condition), release (the buyer signed an as-is acknowledgment), or payment (you already refunded the amount claimed).

If the buyer is claiming more than the car was worth, document the vehicle's fair market value at the time of sale using Kelley Blue Book or NADA guides.

Across All Dispute Types

Regardless of the category, the procedural requirements are identical:

1. File your answer on Form 4-301 within 20 calendar days, or within 23 days from mailing for qualifying certified-mail service using Form 4-208
2. Address every paragraph in the complaint individually
3. Raise all affirmative defenses in the answer
4. Include compulsory counterclaims or lose them
5. Exchange evidence lists 15 days before trial
6. Prepare three physical binder copies of your exhibits

The Responding to a Small Claims Case in New Mexico guide provides the organizational framework for all of these case types — a Form 4-301 preparation worksheet, affirmative defense identifier, counterclaim decision checklist, and evidence log — so your facts are structured for the courtroom regardless of what type of dispute brought you there.

See more New Mexico guides →