A deed is a written and signed legal document that transfers property ownership. As with any deed, a Maryland warranty deed should be customized to reflect the specific terms and conditions of the transaction.A warranty deed guarantees that a seller owns the property free and clear of liens. A general warranty deed provides the highest level of protection to the buyer. It guarantees that the property is free of any liens or claims. The difference between a warranty deed and special warranty deed is the extent of the coverage of the warranty. A general warranty deed provides an optimal transfer because it entails little to no risks involved when you purchase a property. Warranty deeds are typically used where the grantor and grantee are in the position of buyer and seller, and are strangers. The grantor makes no warranties or guarantees about the title and merely transfers whatever interest they may have in the property. The most common deed form in Maryland is the special warranty deed.