David is right for the most part about financing. However, if the home is on a resident owned lot/parcel and it was built after June 15, 1976 you can usually qualify for a conventional fixed rate 30 year fully amortized loans and/or FHA/vA loan.
If, however, the home is in a lease/land park/development it is considered chattel and these types of loans are much more difficult to come by and usually end up with much hight interest rates and much shorter terms i.e. 15 to 20 years depending on how old the home is.
If the home is a Pre HUD home, built before June 15, 1976 its even more difficult if not almost impossible to find a chattel lender.