signer

transitive verb

1. : to affix a signature to : ratify or attest by hand or seal sign a bill into law; specifically : to write or mark something (as a signature) on (a document) as an acknowledgment of one's intention to be bound by it : to write or mark something (as a signature) on (a document) as an acknowledgment of one's intention to be bound by it

2. : to assign or convey formally signed the property over to his brother