Maybe selling is the best option stop the bleeding and do something that is more risk adverse. 

I still think that the appreciation question boils down to the "Do people with options want to live here?"

For an auction.com purchase in Washington you have 2 options. 

Check out https://legaltemplates.net/form/lease-agreement/termination/...They have more options.

.- Cant do blanket loan as I own one of the houses in one llc and the other in another llc.Thank you for your help and I hope someone will have good options!

I don't have any brand preferences personally (I use Fantasy Spas at most of my units but I'm sure there are alot of reputable options), but just make sure wherever you place it is built to handle that type of weight.

Do you limit the term to 6 months to begin with, or 30 days minimum stay and negotiate an option later on?

Quote from @Micheal Smoke: Hi, my name is Mike Smoke, and I'm an aspiring real estate investor focusing on multifamily and Section 8 properties in the U.S. as the barrier to entry is much much lower in terms of price compared to Canada and Funding options. 

Financing & Loans: What are the best loan options for short-term rentals?

Your suggestion to list on open market likely is the best option for the OP.