We would all love to have that note that has 5 years of perfect payments, 800+ credit score and a 20-25% down payment. 

I guess it can save you some time managing, for example one tax bill, one insurance bill. 

DSCR loans are based off of down payment, credit score and either actual or market rents so it helps to supercharge an investor's real estate goals and net worth.

I can’t imagine the returns you would have to generate. 22% federal tax, plus 8% state tax, plus 10% penalty.

Sounds like the person knew what was going on with their credit report as they have filed reports in the past. 

What's the lowest credit score you will allow?

The goal of a HELOC is a quick line of credit to either refinance or sell and pay back the HELOC as soon as possible.PS - I would recommend taking a look into the Columbus Ohio market, there's tons of 1% rule deals still within the 120-180k price point with amazing appreciation potential.

You are still going to get the best rate possible with your significant down payment and with good credit I'm assuming.   

Also, would this loan help build my personal credit, or would it only report to business credit bureaus under my LLC?

They could even hire you to do the work on the house and instead of paying you they could just give you a credit at closing.