Here are some links that you may find useful...they are the most frequently requested!
Affidavit of Ownership Light-Sport Aircraft Manufacturer’s
Affidavit of Ownership for Amateur-Built and Other Non-type Certificated Aircraft
Certificate of Repossession of Encumbered Aircraft
Aircraft Registration Renewal Application
Aircraft Registration Application
Thanks to Jay Flowers from the ND FAAST for this information!
Randy Corfman