Learn how the County buys products and services. Search contracts, find open solicitations on BuyNet.Whether you are a business buyer or seller, contact San Diego Corporate Law for a consultation to discuss your business sale options. In this post we'll be going over basics about the standard home purchase contract in California, so you'll have a general idea of what you're getting into. The current auctioneer on contract is TNT Auction. Company. TNT maintains a mailing list and handles all registration requirements.