It is called a quit claim deed and you can get the form online. One thing you need to be clear about, if this property is mortgaged, the mortgage company does not have to recognize the Quit Claim Deed or take you off of the mortgage. You will have to have an iron clad contract between the 2 of you that this mortgage will be paid by him. If he does default, they will come after you.
Please do cross referencing, such as calling the register of deeds in your area and ask about Quit Claim Deeds. They may have some there, and there are some quit claim deeds at the library - which you may ask for help because they are easily found for legalese personnel, but hard for some to find.
You will have to fill out the Quit Claim Deed, have it notarized and file it with the Register of Deeds.
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