Right of Refusal in Eminent Domain battle

[Samuel Finklestein]

I am looking at an property in Pennsylvanian, the house I visited was very nice and I am interested in buying it from the owner. However after some research it looks like this house is listed as a property for an upcoming sheriff sale, further it seems that this house had an history, it was condemned & seized by eminent domain by the local redevelopemnt authority, then later sold to the current owner. The county said that this house is currently being in discussion between the bank and their lawyer and the redevelopment authority and its lawyer due to something called an "Right of Refusal" . The owner assured me he has the deed, and it does seem that he has it for now.  Does anyone whom has experience in this matter shed some light on this?