Final answer:
The seller has 20 days from the date the title company receives the contract to provide a commitment for title insurance to the buyer, as per the TREC-promulgated residential contract.
Step-by-step explanation:
Under the TREC-promulgated residential contract, the seller has 20 days from the date the title company receives the contract to deliver a "commitment for title insurance" to the buyer. This provision ensures that the buyer will receive the necessary documentation relating to the title of the property within a reasonable timeframe, allowing for the transaction process to proceed smoothly.