9 Units building in Prospect Lefferts Park, Brooklyn for $1.2M

This is 9 units building, 8 units are 3-bedrooms apartment, and one unit is in the basement, all rent stabilized, Note: The apartments have not been registered with DHCR for many years. There are also no leases.
Annual Income - $92,549.88, projected $442,428
Total Annual Expenses $46,714
there are six parking garages, $100 rent per each.
There is the potential to add value by duplexing the apartments. The first floor can be duplexed with the basement to create two duplex garden apartments. The second and third floor can be duplexed to create two duplex apartments and the fourth floor can be duplexed by using the air rights to create a fifth floor. The property can have a total of six free market units.