Find forms, samples and fees for most business entity filings here. Both the seller and purchaser of a group of assets that makes up a trade or business must use Form 8594 to report such a sale.Use a Business Bill of Sale to set out the terms for the sale of a business and transfer the ownership and all assets to the buyer. A SLAT is an irrevocable trust created during a married settlor's lifetime. The SLAT allows a married settlor to remove assets from her estate. The most Contra Costa County, California businesses for sale listings including franchises, opportunities and businesses. Get help to form a California corporation today. Deciding what type of business structure is best for your small business can be a confusing exercise. Browse 127 businesses for sale in Contra Costa County, CA on BizBuySell.