Warranty Deed A type of deed where the seller guarantees that he or she holds clear title to a piece of real estate and has a right to sell it to the buyer. The guarantee extends back to the property’s origins. Jayne is a partner at the law firm Sykora & Santini. Prior to law school, Jayne began her professional career as a marketing professional for American Republic Insurance Company in Des Moines, Iowa. Read more posts by Jayne Sykora.