if I walked away from a Co-op do I need to keep that address on my tax return

I walked away from a co-op 5'years ago. I have not paid the mortgage or maintenance fees but the bank has( Wells Fargo has paid the mortgage and the maintenance fees for me). I do not live there and the co-op is not in foreclosure yet. My accountant advises me to keep the co-op address on my tax return (even though I don't live there) so when there is debt forgiveness it's seen as my primary residence. However this tax year I was a victim of tax fraud so having the co-op address on my tax return is causing a problem. My Question is - is it worth keeping the old address or would it be ok to update the IRS with my current address.