Wisconsin Amendment to Offer to Purchase is a legal document used in the state of Wisconsin when a buyer wishes to make changes or amendments to an existing offer to purchase. It is a legal document that outlines the terms of the new offer, including any changes that have been made from the original offer. There are two types of Wisconsin Amendment to Offer to Purchase, a mutual amendment and a buyer's amendment. A mutual amendment is a document that both the buyer and seller agree to, while a buyer's amendment is one that only the buyer agrees to. Both types of amendments must be approved by all parties involved and must be signed and dated by all parties. Wisconsin Amendment to Offer to Purchase is an important legal document that should not be taken lightly and should be reviewed carefully by both parties before signing.