Return on revenue (or return on sales) is an indication of operating profit margins (NOI/revenue) and has nothing to do with how a deal is financed.For a typical rental, using the 50% rule, your ROR is going to be about 50% (not quite, because things like vacancy and capex aren't expensed, but you get the idea).Now, if you're asking about your ROI or your IRR, those are theoretically infinite, as you are earning a positive return on zero investment (the denominator of the return ratio is zero).

., as an investment sponsor in this operating space I obviously have some opinions, I'll try to frame an answer with as little bias as possible

Lets say that your expenses (everything except the principle and interest portion) run 50%, so that leaves you 5,700 for your net operating income (NOI).

I know how people will say most restaurants will fail, but not for great operators.

I co-founded a non-profit and my friends have a successful business that have been operating along the lines of a B-corp (North Carolina does not recognize B-corps although there was legislation in the senate last I heard).

I know a lot of us here think about what it will be like expanding the operations to lots of employees and having to deal with all the management issues that come up...it's nice to hear from someone who's doing it on a large scale (very large scale actually, compared to most in this business).

For financial operations, there are five key ones.

I believe it was UBIT unrelated business income tax, that is a tax at trust rates on IRA's that operate a business within the confines of a qualified plan.

Your goal as an investor is to protect your money. you need to operate on LTV (loan to value) at most of 70% of the purchase price.

Learning to operate under significant pressure, crunching numbers, how to effectively manage time and dealing with very angry people.