Alternatively, you could explore options like cash-out refinancing to access equity while keeping low interest rates and established cash flow, or a 1031 exchange to defer capital gains taxes and reinvest proceeds into a similar property.

My guess is your electrical is grounded to your copper piping (pretty common) and you have some sort of trickle charge running through the system and grounding out through the concrete.The other option could be your gas line.

If you need a 2nd or even 3rd opinion on a loan options please feel free to reach out. 

@Matthew Villalon, thankfully, it seems like either option repairs the leaky/flooding basement.

The best option is to have a direct booking site and collect past guest emails etc using a data collection system like “Emailcollect” and remarket to them making 10-15% extra revenue because you have no booking fees.

I can help give some options if you're up to it.

Benefit to the conventional option is that this does not apply. 

@Paul MeyerMost people pay cash because it's the easy option.

I can introduce you to my friend and get you more options easily. 

Current rental: est MV = $375k, current mortgage $218k, net $157k One option is to do a cash out refi on our investment property to pay off the HELOC.