This is not something you can have responded to herein.  You need to review prevailing bank rates.  Contact your state's Dept of Banking or Financial Institutions (http://dbf.georgia.gov/02/dbf/home/0,2477,43414745,00.html;jsessionid=23EE20E02E56CF554E61AF553A471D42)and see if there are prevailing list available to you. In terms of proper forms for owner financing -- you need to review your state's Dept of Real Estate for purchase and sales forms, and in terms of the mortgage itself, again contact your state's dept of banking.  You may also wish to contact a real estate attorney.  Try www.attorneypages.com.Forms are different - many have the same boilerplate provisions but unless you absolutely know what you are doing, it may be better to consult with a professional one on one.