this method of modifying the contract has an obvious advantage in negotiations: it is immediately apparent, on a single page or two, which terms are being changed and which are not. first and foremost, the seller wants to make sure that a buyer is serious and capable of following through. lastly, if there are adverse conditions or defects known to the seller, the seller will want to use the contract as a means of fully disclosing these conditions, up front and in detail. and the seller certainly does not want the failure to cure objections (or failure to even try) to be construed as a default that could result in a lawsuit from the buyer. in the case of a “subject to” transaction, precise language to this effect should be included in a custom addendum to the contract since there is no trec or tar addendum for a sub2. the foregoing is a partial list of seller concerns. can the buyer be sure that the seller will take the buyer’s word and agree to return the earnest money? even better, a careful buyer may want to see and approve the form of the warranty deed that the seller will deliver at closing. as part of the buyer’s investigation into property condition, it is clear that the buyer has an interest in full disclosure of all defects and other material adverse conditions. first, the form states, right at the top, that “it is not a warranty of any kind by seller or seller’s agents.” why not? note that the weight of texas case law suggests that a mere street address is not enough.