Welcome to the forum.
Not sure exactly what you want to do. Buy or Sell??
It is true that banks have a problem financing an old MH like mine unless you are one of their prime customers. There are banks out there that will lend if credit rating is high enough, you just have to find them. Credit Unions are a little more lenient. Stay away from predatory internet lenders....just my opinion. Some of these guys promise the moon.
If you own a home you can usually get an equity loan of some type that offers reasonable rates......but you must make the required payments or you could lose your house. Advantage is your MH title would be clear.
You just have to search around.
98 Endeavor DP, ISB275
RX300, Falcon II hitch, Brake Buddy
VMSpc, 2002 Grey Ford Powerstroke
TST 507 w/ 10 Sensors