Unfortunately, I have to admit to knowing very little on landlord tenant law or ethical practices.I requested a 1 month early lease termination for Feb 29th and asked my landlord what my options were.

For cash out refinance DSCR, you can typically get up to 75% LTV (I have seen one option for 80% LTV depending on what you qualify for and the property location).

I can't order furniture, set up moving dates, or advertise for roommates.I'm also undecided on whether I should pursue STR/MTR/LTR options. (5 minutes away from groceries, 15 min drive to DT Seattle, <30min bus to DT Seattle)Do you have any advice on what steps I should take leading up to the closing date, which is just 2 weeks away?

They are not warrantable so that restricts them quite a bit.So owner financing should be more of an option than regular places.

This is probably your preferred option.

Compare that to being able to easily compare options and know what you are getting into and being able to see what is going on, even if you are inexperienced.Check all the threads here on Bigger Pockets about turn key companies that were/are scams/ not as promised/disappointments. 

You should look into other options for being able to use those funds.

Let me know if you want me to send you some options to look at here in South Florida.

Or master lease and an option. 

Yes, covering appraisal gaps is an option.