A witness signature refers to the signature of an individual who has observed the signing of a legal document and can attest to its authenticity. IN WITNESS THEREOF, the parties hereto have executed or approved this Contract for Grants on the dates below their signatures.CONTRACTOR: By: Printed Name. Sample Contract. AGREEMENT. BETWEEN. Signature: Date: Patient Initials: Witness Name: Witness Relationship: Witness Signature: Page 4. ocroc.net. 4. How do I fill this out? Memorandum of Understanding. MSA. Signature: Date: Patient Initials: Witness Name: Witness Relationship: Witness Signature: Page 4. ocroc.net. 4. Witness signature rules. We can provide you with samples of court forms that are available.