8.1 TREC Promulgated Contract Forms

Key Takeaways

  • TREC promulgates six residential contract forms; a license holder must use the appropriate promulgated form when one exists for the transaction
  • The Broker-Lawyer Committee (6 brokers and 6 attorneys appointed by TREC and the State Bar) drafts and revises every promulgated form
  • A license holder may fill in blanks and check boxes but may NOT draft contract language or add legal provisions—doing so is the unauthorized practice of law
  • The One to Four Family Residential Contract (Resale), Form 20-18, is the most-used form and contains 23 numbered paragraphs
  • Paragraph 5 creates the termination option: a non-refundable option fee buys an unrestricted right to terminate during the option period (typically 1-10 days)
Last updated: June 2026

What "Promulgated" Means

To promulgate a form means TREC officially adopts it and makes its use mandatory for license holders. Under Texas Real Estate License Act (TRELA) and TREC rules, when a TREC-promulgated form exists for a transaction, a sales agent or broker must use that form—they cannot substitute a self-drafted contract or a competitor's form.

The purpose is consumer protection: standardized, attorney-reviewed forms keep non-lawyer license holders from practicing law and protect the parties from defective contracts.

The Broker-Lawyer Committee

Promulgated forms are written and revised by the Texas Real Estate Broker-Lawyer Committee, a 13-member body:

MembersAppointed By
6 licensed brokersTREC
6 licensed attorneysState Bar of Texas
1 public memberGovernor

The committee drafts forms; TREC adopts them by rule. This is why agents may not alter the wording—the language has been deliberately balanced and legally vetted.

The Six Promulgated Contract Forms

TREC promulgates six residential purchase contracts, each for a specific property situation:

FormUse
One to Four Family Residential Contract (Resale)Existing 1-4 unit homes (most common)
New Home Contract (Incomplete Construction)Builder home not yet finished
New Home Contract (Completed Construction)Builder home already built
Farm and Ranch ContractRural/agricultural property
Residential Condominium Contract (Resale)Resale of a condominium unit
Unimproved Property ContractVacant land/lots

Exam Tip: If asked which form to use, match the property to the situation—a resale single-family home uses the One to Four Family Residential Contract (Resale); a vacant lot uses the Unimproved Property Contract.

The Unauthorized Practice of Law Limit

A license holder is not a lawyer. TRELA permits a license holder only to complete a promulgated form, not to draft legal language. The line is precise and heavily tested:

A License Holder MAYA License Holder MAY NOT
Fill in blanks with factual business detailsDraft or add legal clauses or special provisions
Check the appropriate boxesGive legal advice about the contract's effect
State factual business terms in Paragraph 11Determine which legal addendum a transaction needs as legal advice
Attach a TREC or appropriate addendumWrite contingency language from scratch

Paragraph 11 (Special Provisions) of the One to Four Family contract is where this trap lives: a license holder may insert only factual statements and business details, never language that creates new legal rights, obligations, or contingencies. Drafting such language is the unauthorized practice of law (UPL), a TRELA violation that can lead to discipline up to license revocation.

The One to Four Family Residential Contract (Resale)

This is the workhorse of Texas residential sales and the form the state exam emphasizes most. The current revision is Form 20-18 (effective January 3, 2025). It has 23 numbered paragraphs. Key paragraphs to know:

  • Para 1 – Parties: Seller and buyer
  • Para 2 – Property: Legal description; what conveys (improvements, accessories such as built-ins, and—new in 20-18—generators)
  • Para 3 – Sales Price: Cash portion plus financing
  • Para 4 – Leases: Discloses any existing residential, fixture, or natural-resource leases on the property
  • Para 5 – Earnest Money and Termination Option: the earnest money, the option fee, and the unrestricted termination right are combined in this paragraph
  • Para 6 – Title Policy and Survey
  • Para 7 – Property Condition
  • Para 8 – Brokers and Sales Agents: broker disclosure and how brokers are paid
  • Para 9 – Closing
  • Para 11 – Special Provisions (factual statements only)
  • Para 23 – Consult an Attorney Before Signing

Addenda: Building the Deal

Because the base contract can't cover every situation, TREC promulgates addenda that attach to it (checked in Paragraph 22). Common ones:

Addendum (TREC Form)Purpose
Third Party Financing Addendum (40-11)Makes the sale contingent on the buyer obtaining a stated loan; buyer's earnest money is refundable if financing is denied within the approval period
Seller's Temporary Residential Lease (15-7)Lets the seller stay up to 90 days after closing (leaseback)
Buyer's Temporary Residential Lease (16-7)Lets the buyer occupy before closing
Addendum for Property Subject to Mandatory HOA Membership (36-10)Required when a property owners' association exists
Addendum for Sale of Other Property by Buyer (10-7)Buyer's purchase contingent on selling their current home
Addendum for Reservation of Oil, Gas, and Other Minerals (44-3)Reserves mineral rights to the seller

Key Distinction: The Third Party Financing Addendum protects the buyer's earnest money. If the loan is denied during the approval period, the buyer terminates and earnest money is refunded. This is different from the option fee, which is non-refundable.

Amendments and the Termination Option

Amendment

Once a contract is executed, changes require the Amendment to Contract (TREC Form 39-10)—NOT an addendum. An addendum adds terms at the time of contracting; an amendment changes an existing, signed contract (e.g., adjusting the price after inspection negotiations). Both parties must sign.

The Termination Option (Paragraph 5)

The option period is uniquely Texan. For a negotiated, non-refundable option fee, the buyer buys the unrestricted right to terminate for any reason during a stated number of days (commonly 1-10). If the buyer fails to deliver the option fee within 3 days of the effective date, the buyer has no unrestricted right to terminate. If the sale closes, the option fee is credited to the sales price.

MoneyRefundable?If sale closes
Option feeNo (it buys the walk-away right)Credited to sales price
Earnest moneyYes, if buyer terminates under a contract rightApplied to buyer's costs
Test Your Knowledge

A buyer's agent wants to add a custom contingency clause stating the sale is void unless the buyer's mother approves the home. Where in the One to Four Family Residential Contract may the agent place language, and what is the limit?

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Test Your Knowledge

Which body drafts and revises TREC's promulgated contract forms?

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B
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D
Test Your Knowledge

A buyer delivers a $300 option fee and a $5,000 earnest money deposit. During the option period, the buyer terminates simply because they found a home they like better. What happens to the two payments?

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