In CA, we recommend putting it verbatim in paragragh 3. E (additional financing terms). We put in on our pre-approval letter. Include it in your agent cover letter.
Writing a Contract Addendum Name the parties to the contract. Indicate the addendum's effective date, using the same date format used in the original contract. Indicate the elements of the original contract that the addendum intends to change. Concisely but clearly describe the desired changes.