Please review the various home warranty companies and what they cover. After doing so, please text or email me the one you would like so I can have the title company order it before closing. The amount the seller will pay will vary based on the contract per paragraph 7H on the 1-4 Family contract from TREC.
Here is a review site of the various home warranty companies as well.
http://www.homewarrantyreviews.com/Texas-home-warranty-companies#.UjH3fmRgaPd
List of Home Warranty Companies in Texas
http://www.orhp.com/index.cfm?go=homeowners.viewPlanState&state=Texas
http://www.oneguardhomewarranty.com
http://www.hwahomewarranty.com/