You are picking out pieces here and there for answers, and you'll never make the connection from entrance to exit that way.

So the apartments are still perfectly intact and well preserved, kitchens, entrances and all, even the appliances which work great!

They had those professional massage tables, a bar at the entrance of the home where people usually have living room.

Downstairs finished basement is a 2/1 with no kitchen and plenty of space, and has it's own entrance from the back of the house.

What's up with some of the silly stuff like the like roof gutter on the side entrance.

Zoning can help but be sure to read the code for yourself.Consider that there are  key times for what defines a separate unit -- a roommate living in the basement vs. separate entrance, utilities vs. separate utilities and a kitchen. 

As we found, sealing the entrance to the room wasn’t enough, particularly when your renovation runs longer than expected, the seasons change, and you need things that are packed away.

You need(ed) to start from the end...your ultimate financial goals, and reverse engineer from there.You also need to understand that every entrance into a deal, sets up the exit...which is based on the entrance to the next deal, and so on...   

It is mostly already setup for the conversion with entrances, and electrical.

It's a $30 dollar entrance fee, but it will allow you meet multiple individuals who mentor in varying areas of real estate, as well as get known in a group of active investors.