Their children (now in their late 40s) inherited the house, but they have not listed it on the market, and I heard that neither is willing to move into it from their current setup, so the property has been sitting vacant.

Aloha @Caden Wakim -  not all VA's are the same. 

Hey there, I work with some of the best GCs in the philadelphia!

I grabbed my multi meter and showed them the voltage in the water . 

@Jordyn Ohs Assuming your heloc is re-advanceable and the rate is higher than your mortgage, I would suggest you pay your HELOC down as quickly as possible with any cash flow from the properties.

This means that if you pay off the loan too early, then you'll pay a 1-5% fee off the loan amount. paying off the loan early means you either refinance or you sell the property, both would trigger a prepayment penalty to the lender. that being said, you can choose your prepay options, 5yr usually giving you a better interest rate by like a 0.25%, 3yr being most common and standard, and a 0,1,2 yr where you can buy down the prepay to be less years. meaning you pay 1% upfront of the loan amount to get a 1yr prepayment penalty so you're free to sell the property or refi after 1yr. 

Also, if you buy using a hard money lender or cash, Zach Starnes can do re-fi's off the appraised value shorter than the typical 6mos and then you might not need any money down if you buy at the right price.

Utilities included.Fully rented.For sale off market.

Annual lease is the way to go.

Does this exist in the commercial realm?