You really need to seek professional help to fix this. Especially if your state taxes personal income. You've taken way more depreciation than allowed each year for the entire 27.5 years it was depreciated. Basically, that would make your cost basis in the entire property ZERO and 100% of the sales price (minus sales expenses) taxable income to you. Therefore, I suggest you RUN to a local professional for help with this, and I hope they can keep your tax burden on the sale (as well as possible fines and penalties) as low as possible.
