Is an unnotarized promissory note enforceable in court (AZ, USA)?
language: “Promissory Installment Note…personal details…INTEREST RATE: Annual interest rate on matured, unpaid amounts shall be the maximum amount permitted by the Laws of the State of Arizona. PAYMENT TERMS: This Note is due and payable as follows, to-wit: Forty-Eight (48) equal monthly payment of Eighty-Four Dollars ($84.00). The first such payment due and payable on the 1st day of August, 2007, and a like installment shall be due and payable on the same day of each succeeding month thereafter until the total principal of Four Thousand Dollars ($4,000.00) is paid in full. If each payment is not paid on time, the remaining balance will be subject to the maximum amount of interest permitted by the Laws of the State of Arizona. …then Borrower’pre-payment right, default and acceleration, interest on past due + charges, interest, forms of payment, atty fees, severability, binding, descriptive headings, construction, governing law including: “Borrower is responsible for all obligatio