re purchase of redeveloped house

[Samuel Finklestein]

Hello 

I met an unusuall situation and was wondering if some people can shed some light on it.

I visited an house for sale by the owner, he told me that this house was condemned by the local housing authority on 2014 then transferred to an redevelopment company who in turn contracted him to re-develop the house and then sold it to him in 2015, He did so, and is now putting it up for sale in 2015. for around 100k

however it looks like there is an judgement and an lien from the previous owner who was deceased, it looks like the previous owner died and left an outstanding $79k mortgage, the court judgement totals 130k, and it looks like this house is also being planned at an sheriff sale, The county deed office shows that Mr. Redeveloper now owns the house, whats going on?