Answer:
Lenny
Explanation:
Even though Lenny moved into the home but did not record the deed which is a legal document that will prove and show the transfer of ownership of the property from Mark to Lenny in which Donald was the one who recorded the deed , the person who OWNS the property is LENNY reason been that we were told that Mark sold his home to LENNY before he died a few weeks later.
Therefore the person who owns the property is LENNY.