You can also easily rent a room for $900++ on a monthly basis. 

Credibility is hard to come by and extremely easily lost.So do your best to make sure you provide value.The #1 rule about wholesaling my handsome brother, is that you need to be honest, hardworking and transparent.We get a lot of contracts signed by just telling the owner we are going to wholesale the house, not buy it.Then explain wholesaling to them and how it is far better than any other method of selling for them.

That could easily be $40K in tax right there. 

It still should be about the similar spread (75bps or so), but there are a lot of levers you can pull more easily on DSCR such as buying down points, heavy prepayment penalties, flexible underwriting guidelines that can make the rate equivalent or even better than on the conventional side

Especially with a market rate of around the 6% area, you could be looking at 7% interest rate easily.

If they are professional, they can explain this quickly and easily.

If it's single-purpose (like a drive thru burger joint), you only have historical $/SqFt.If it can be re-purposed easily, vanilla shell with zoning that can handle variety of tenant types, then I'd add some more to the empty $/SqFt.In any case, you're going to need to know sales comps.

If you analyze it that way and it's cash flow positive, that gives you peace of mind that you can easily move out later and keep the property.

Properly set up, you can easily generate a variety of financial reports, rent rolls, etc. and process all payables and receivables in an efficient an orderly manner.Usually you should be able to "lock" your transactions at the end of each month, permanently preventing any changes to prior periods once you close them.

Do it in the flip, which is exactly what you're saying so I'd, say or eliminate your rent rental strategy and going to lend me that's a much smarter move.