If you have questions about what form to use, or how to fill them out, visit your local law library to do your own legal research, or consult a lawyer. Sac State Process: Allow 48 hours for the Financial Aid Office to receive your completed Master.All borrowers must sign the Master Promissory Note (MPN) annually. New borrowers must also complete entrance loan counseling through the Student Aid website. There are some important items to consider when drafting a promissory note. A promissory note should clearly identify the parties full legal name and address. Complete the PLUS Loan Master Promissory Note (MPN). On the MPN, be sure to correctly list the student's name, date of birth, and social security number. Writing a promissory note should be tailored to your specifications of that particular loan. Check out a free preview of a promissory note at 12Law.