It is hard to fully grasp this question because I do not know the complete specifics of your situation but I will try to help. If you are thinking of applying for a loan for a house, credit score is not the only factor that is looked at, although it is important. Other factors such as income, debt, employment, expenses, liabilities, assets, along with credit score are all looked at to see if you can qualify for a loan. I am not sure what you consider "poor credit" but lenders like myself have been able to give people loans with scores as low as 580. I suggest you call a lender, like myself, so that we can try to help you out in your situation or at least point you in the right direction.
Well I hope this helps! If you have any further questions or if you need a loan, feel free to contact me. Also, if you found this helpful please leave me a recommendation if you can!
Brian Nguyen Sr.
NMLS # 659743