Cynthia-
The fact you are on Social Security doesn't matter- what matters is your debt to income and ratios verses your income that you do have coming in- on top of that if you have a lot of assets a good mortgage broker can use the assetts to creat addional income from the interest that you receive from that asset. It seems to me your rate is very high- and with 70k down i would say you have to be at a pretty good loan to value ratio. It would be a good idea to talk a good broker that can navigate your loan- not all brokers are created equal, and in this case you don't want to talk to a bank that will only pitch the products they have...and TRY and make you fit into one. I would be happy to help you, if you don't have a broker in mind-
Jim Cavoto
720-309-3014