http://videotap.wistia.com/medias/an6kj6kjpj?embedType=async&videoFoam=true&videoWidth=640 What Is A Certificate of Eligibility, or COE? The COE is the key document that verifies to lenders that someone is eligible for a VA-backed loan. Servicemembers, Veterans and National Guard and Reserve members may apply online or through their lender; most lenders have access to the system and...