An acceleration clause in a mortgage or trust deed stipulates that the entire debt is due immediately, if the borrower defaults under the terms of the contract. Bull Forms offers a simple online solution to generate all of your Texas real estate forms with simplicity.If you are obtaining the forms for possible use in a real estate transaction, you should contact a real estate license holder or an attorney for assistance. These are the main steps to successfully close the deal. A Texas deed may come in one of several different forms; it could be a special warranty deed, a general warranty deed, a transfer on death deed, or a gift deed. The "as is" clause basically provides that the seller is selling, and the buyer is buying, the property in its "as is" condition. Standard Residential Purchase Agreement (1-4 family). The most commonly used form because it is for the purchase and sale of residential homes under four units.