ARM = Adjustable Rate Mortgage. ARMs are variable and the annual percentage rate may increase or decrease after the initial account opening, which can increase or decrease the monthly payment. Credit secured by the consumer's principal dwelling may exceed the fair market value of the dwelling. Consumers should consult a tax advisor for further information regarding the deductibility of interest and charges. Contact Dover Federal Credit Union for terms and conditions. Rates are subject to change and are based on evaluation of credit history, loan-to-value, and loan term.