A warranty deed guarantees that a seller owns the property free and clear of liens. Suffice it to say that a deed is a deed, and the only difference is the type of warranty the seller gives the buyer.A special warranty deed is the more limited of the two. A general warranty deed provides the highest level of protection to the grantee. A warranty deed, in essence, is a seller's assurance that they hold clear title to a property and have the right to sell it. Warranty deeds offer the highest level of protection for buyers and there are two types, general and special. A General Warranty Deed conveys real property in most US states. A General Warranty Deed not only conveys a grantor's interests and title to a property. A warranty deed is a legal document used in commercial real estate transactions to transfer property with a guarantee of clear title and buyer protection. In Texas, a deed of trust is an instrument used instead of a mortgage.