Help with cash deed to previous bank owned property

[Alecia S.]

I recently bought my fifth rental property from the bank and have a cash deed. We are currently renovating the property and a man shows up and tells us that he still owns the property and has a grant from the habitat store for 40000 to renovate the property. I have a cash deed on this property. He is the person who had previously owned it. I told him he needs to talk to his mortgage lender/bank who sold me the house. I was planning on proceeding with the renovations. Should I be concerned with this man showing up?