Architect/Builder experienced turning older 4k sq ft home into Apartment

[Emory Clayton]

Looking for Architect/Builder experienced turning older 4000 square ft home into Apartment and/or ideas from people who have done this before. Home was built in 1900, so no central heat and air. The bones are in great shape. Fixed up I could rent with ease given its location, however I was looking for help in deciding the layout and complications in doing this. I'm in Central Alabama.