I am struggling to find any lenders that will do a line not a term loan.  

Planning to use the rental as a short term rental or traveling nurses. 

I'm starting a short-term rental property/ Air BnB albatross business. 

I have two long term tenants and two relatively new tenants.

This is a long-term business with short-term risks.

You are in a tough spot but the advice on selling is an option. the other is to see if you can refinance at 60% LTV to pay off this loan into a longer term option but you would be paying the higher interest due to your credit. 

Speak to a few hard money lenders for their terms and you can estimate their charges.

You aren't representing either party; you aren't negotiating the price or terms between the buyer and the seller (if you are, stop doing this), and you aren't selling real estate.

HMLs are a crucial short-term solution for properties needing significant repairs, and for investors not wanting all the red tape that comes with traditional products.

I managed the properties myself, and was offered a job out of state that required long-term international travel.