This Agreement is made and entered into this _____ day of. A witness signature acts as a confirmation tool in legal agreements.It affirms that all signing parties authenticate the document and consent to its terms. 1. Gather required identification and documentation. The parties involved in the contract don't require witnesses. A good example is a lease. Below is a list of common sections included in Artist Management Agreements. These sections are linked to the below sample agreement for you to explore. This allows third parties to determine whether the equipment or real estate is subject to a "lien. " Must signatures be notarized?