The house was originally a duplex at about 1200 sqft, but was converted to a single family home by way of cutting doors into the wall separating the two units.

@Michelle Dong most of the MF units in Indianapolis are SFR's converted to MF in old rough neighborhoods.

One is a rental the other is converting to a rental now.

Lets say I want to purchase a new home to live in and convert my old residence to a rental instead of selling it.

I used LibreOffice Draw, then converted it to PDF.Section 4 of  https://www.azleg.gov/ars/11/00480.htm states:"Each instrument dated and executed on or after January 1, 1991, .... shall have a print size no smaller than ten point type."

It sat vacant for 6 months, and now he's just signed a lease with a family of known druggies in town because they were able to move in within a week of viewing the place (he was informed they were druggies by the tenant in the converted shed rental on the property but was antsy to rent it because he's paying the mortgage.) 

As for converting to a 3 unit, do you research with the code requirements as that could lead to a deal breaker.

It’s a 3 br home with a detached garage that (with a lot of work) could potentially be converted into extra living space.

After the properties went under contract we made some concessions in terms of electronics, smart home equipment, doors and locks etc.Does it not make sense to file for taxes under  Sale of Business Property, since the property was bought as a single family and converted into a duplex?

After the properties went under contract we made some concessions in terms of electronics, smart home equipment, doors and locks etc.Does it not make sense to file for taxes under Sale of Business Property, since the property was bought as a single family and converted into a duplex?