First of all you will need to meet with a banker or loan officer to discuss your particular situation. Typically if you have alarge downpayment and poor credit history, you MAY be able to obtain a loan but at a higher interest rate. SInce you are a higher risk to the lending institution. Qualifications will also depend on a steady source of income(a job)and what monthly amount you can feasibly afford as a monthly mortgage payment. Don't forget to add on for taxes, insurance and probably in your situation mortgage insurance. This is insurance that the lender may require you to purchase. It protects the lender with their investment in your loan.