buying a house

we have lived in our house for 10 years, owned it until 2 years ago, we had some financial problems, so my dad bought it until we could get back on our feet. he has recently passed away, and we, of course are still living there, and we want to buy it back. our scores are still bad, mine 540, my husband's 525. is there anyway we could buy even if we have to have a high interest rate, and if so, where do we go? we have about 2000.00 to put down. we are really haveing a tough time with his death, and just want the house in our name. he never lived in it, but was always there for us. need some direction thanks