If the building has independent supply runs to each unit, you have the option of sub-metering water and billing each unit for their consumption. 

Hi - sharing an article I wrote and published here on BiggerPockets last year on this exact topic - options for BRRRR financing - hope it helps!

If it can't cover overhead expenses and make a reasonable profit, it might not even be in business long enough to finish your project.The National Association of Home Builders published a report a few years ago that stated that their "best" remodeling contractors averaged something under 4% net profit.

You can probably secure the hard money with less than a 25% down payment, and then if things go right - 0 out of pocket on the refinance, but you will still need at least some "skin in the game" regarding a little equity/down payment to start.Sharing this article published here on BP last year on this topic - hope it can help too!

NHDES also has the rules published on their website.  

@Justin ThindAlways take what you see on BP with a grain of salt and verify independently.

I would have someone independent of your contractor do the walk through with you

In an effort to create some credibility and attract investors, I recently published a website through Squarespace. 

No one size fits all on the journey to independence.

JyotinTo summarize: If you are interested in a business opportunity and are an independent broker or a real estate attorney in Florida, Ohio or North Carolina, DM me.