Based on a 760+ FICO and 3 year PPP, mid 7s on a 30 or 40 year I/O product, low 7s on non-I/O.

Just because they make enough income doesn't mean their application is perfect.

I would only deviate from that on a rare occasion for the perfect renter that walks on water."

For example, we (myself included), have a pretty strong base of flippers looking for deals they can buy, renovate, and resell. 

That simply does not add up based on the purported size of operation. 

What you get the money for from your lender based off your qualifications like credit and loan to value ratio, with no cost would be called "par" rate... and from there, you can either buy down to get a lower rate, or you can take a higher rate to get a credit applied to the cost of your loan by the lender.A par rate is simply the rate that you get without having to buy the rate down while also getting no lender credit.

Commonly, these proceeds are used for further real estate investment or costs related to the borrower’s real estate business and strictly can‘t be used for personal uses, such as paying off personal credit cards or any nonbusiness expense.DSCR loans are “primarily based on the property,” meaning that the lender evaluates and qualifies the deal mostly but not completely based on the property’s investment potential.

.: $2,757-If you were to assume the loan and I carried the second note at the above terms your monthly PITI would be: $2,027Saving: $8,760 per year.Scenario 2:-If you were to bring the same $115,000 as a down payment on a conventional loan you would pay: $1,992-If you were to assume the loan and bring cash for equity position your monthly PITI would be: $1,300Saving: $8,304 (with no need to refi in the future)Since this is a hypothetical situation I'm going to give my number based on nat. average homeownership of 13.2 years.

There are so many strategies based on risk preference, family expenses, etc. 

You can boost your ADR by optimizing listing details, adjusting pricing based on market data, improving property appeal, and leveraging positive reviews.