Endorser is a term that is used in many ways in the real estate contract setting. Most traditionally, the endorser is a person who signs over property to another person. With that signature, they grant all legal property rights to the individual they endorse the property for. In order to understand this, one should think about endorsing a check: When you endorse a check, you grant legal rights to the funds represented by the check to another person; the same is true in the real estate context. In a small number of contracts, an endorser might refer to a person who co-signs on a loan with another person. An endorser agrees to bind himself to the loan in case the original loan signer does not pay the loan. This is an important and useful resource for people who are unable to qualify for loans with their own credit.