Final answer:
The owner of real estate who conveys property is known as the grantor. This individual or entity transfers ownership rights to the grantee through the signing of a deed.
Step-by-step explanation:
When the owner of real estate conveys real property, he is called the grantor. This term refers to the individual or entity that transfers the ownership rights of the property to another party. During a property transaction, the grantor signs a deed which includes a description of the property and the terms of the transfer. The recipient of the property is known as the grantee. The other options provided such as lessor and mortgagor refer to different relationships: a lessor is someone who leases property to a lessee, and a mortgagor is a borrower in a mortgage agreement.