Foreclosure Question

I found a house that has already gone to auction so it is in the owner redemption stage. Is there anyway he can sign his right of redemption to me? Also how do I pay it off and secure title? Someone told me at this stage that institutional lenders won’t fund is that true? If so I could still go hard money. Also in this stage of foreclosure if I do redeem will foreclosure show on their credit? I appreciate the help!