PENFED offers non owner occupied HELOC.

Now on to the post, I came across what appears to be a good deal, it's a packaged deal of six duplexes (owner will only sell as a package) that is being offered at $145,000.

Been there a lot of years and high points from previous owner. 

I’m buying a property subject to the existing loan and would like to refinance it in 6 months to cash out the owner and pay off the current mortgage. ( because i know i can get a lower interest rate than what he’s paying) How would I go about doing that?

If you get someone to sublet to you and then you build a successful VRBO or Airbnb what's to stop the owner from raising your rates at lease renewal or not renewing your lease and doing the same thing your doing?

Also, you PM fees will be astronomical (8-10%) compared to the fees paid by 100+ unit owners (3-3.5%). 

I doubt that your road should be the same as mine, and I think you should spend some time coming to grips with what's best for your market and what's best for you.this is what mom and pop landlording is all about.. fully integrated from sourcing to maintaining to managing.. and every city has this type of landlord business owner..  

You can submit an offer with a contingency that the owner pay for all (or even half) of a foundation inspection.

Redfin has a great business model for the owner not the employee.

I am trying to research all the costs associated with the purchase.I am looking to make offers on properties behind on taxes and take off the tax burden from the current owner.