A well written powerful argument describing why the buyer is offering what they are offering in the form of an offer cover letter. A sales contingency is when you will need to sell your current home in order to close on the house you're offering to buy.My main focus is to show you car forms and how to get into that system and how to create a transaction. An agreement to sell real estate, or a purchase agreement, is a legally enforceable document that specifies the terms of a real estate transaction. The California Department of Real Estate has published this booklet in response to an apparent need for information concerning disclosures. We buy houses cash in San Diego CA. No realtors, no repairs, no fees. Complete the form to get your free cash offer now! How To Deliver a Listing Agreement (RLA) with Mike Proctor. From the initial listing agreement to mandatory disclosures, here are the key pieces of paperwork in the transaction. Some states require specific terms to be included in the agreement in order for it to be legally enforceable.