He uses poorly thought through methods, I've listened to his "methods",  Thus, he has the high amount of  Due On Sale called in a short period of time. 

I am sure there are people who did it, even on this forum I saw posts by multiple users who claimed that they were successful doing this method.

@Chris Morris have ALWAYS seen bad "deals" from rookie wholesalers that really don't understand what they are doing to provide value to the industry.It's getting worse because the real estate market has recovered from the 2010 Crash, yet many are still using tactics & methods developed during this time.Everyone in the industry needs to go back and look at what was being done BEFORE 2010 and start using those methods, updating them with current technology.

Specifically, demonstration is complete and electrical and plumbing have started.

You definitely want to use a thorough screening method like rentprep.com that gets their income, credit, background check, and call at least 3 references (make sure to verify them by address/job and then their name).  

I was thinking more of like either refinancing my current VA loan or getting a HELOC and using the equity I have to acquire rentals and potentially doing the BRRRR method to recoup my initial investment.

This depends on if you are using the Cash or Accrual method of accounting for tax purposes.

I hope to find a single-family home with at least 4 bedrooms, use the BRRR method to turn it into a short-term rental property.

However, their lease is up in two months, so I would only focus on non-renewal for now.In my book, I explain methods for removing tenants without evicting them through court.

My method has always been to call every listing that hit 90 days on market in areas that I want to buy.