I did one here in CA and I demolished the pool to gain interior usable space creating a large master suite and family room.

Have you had a licensed master plumber look at the building?

Traffic Master Allure from Home Depot.

Once you have more than 5-10 units, there is no reason you should not have a single master policy.  

It's got a few minimal repair needs which I will do myself, cost 500-1k (replace kitchen sink cabinet floor, water pan for water heater, install master bedroom closet door, off craigslist Stove, Freezer, Dishwasher @250, and done!

Hey Colleen,Here's a resource from https://hectorgarcia.com/ that might help: Quickbooks Master Chart of Accounts by IndustryIt's a spreadsheet that you can filter by industry type and business type.

ADU option is out.Because the utilities wouldn't be split, and it was originally what looks to be the master, the only new item is the kitchen. 

Offer it as a master lease option so it sounds extra fancy. 

Please take the time to master this skill before you lead someone to a ruinous decision.Rob, bottom line this is probably better as a flip.

From a Rehab standpoint I'm an experienced flipper and spec builder so we can really do good on BRRR deals as I have my own crew and 1 employee who is a master carpenter (ok it's my dad I pay him 1200/week and he builds the best cabinets in town and is amazing with trim) only him really for the new construction but he comes in very handy on rehabs!!