A Mortgage Notary Signing Agent (MNSA) is a professional notary public who specializes in the signing and processing of real estate loan documents. MNSAs help to ensure that all parties to the loan agreement understand and agree to the terms of their mortgage. They also review, verify, and prepare closing documents and other paperwork related to real estate financing transactions. MNSAs must be knowledgeable about real estate and lending laws, regulations, and procedures. By providing an essential service and helping to facilitate a secure and efficient transaction, they make it easier for lenders to do business and grant loans to more people.