A warranty deed is a legal document used in real estate transactions that guarantees the seller holds clear title to a property and has the right to sell it. This type of deed provides the buyer with assurance that the property is free from any liens or claims, except those explicitly stated in the deed. In a warranty deed, the seller promises to defend the buyer against any future claims to the property. This means if someone challenges the buyer's ownership, the seller is responsible for resolving the issue, making it a safer option for buyers compared to other types of deeds, like a quitclaim deed.