Realize that the eviction process can be painful but it is also likely that the tenant when they receive the notice to quit will find a solution. 

That's a pain but can be done, though you'll have complaints in Spring and Fall about it being too cold or too hot.

See what their pain points are. 

I would recommend finding a large developer to learn from or partner with so you avoid a lot of the painful early lessons. 

I am a repeat founder and data nerd eager to build a new venture in the investing/data space.I was hoping some (or many) of you would be comfortable sharing pains in investing that you wish went away.You know, things that are so frustrating that you'd pay to have them stop. 

Takes a long time usually and it's a pain, but you can often get the property before it hits the market if you can find owners with distressed loans.

I'm not an attorney and Washington state law is a real pain in the a$$, so I'd recommend contacting a WA attorney that works with investors such as : http://www.seattle-realestate-lawyer.com/Do you have any "boots on the ground" in WA? 

Find a better job anywhere to ease the pain?

This tenant has been a pain in the *** and high maintenance from the get go, but we are stuck with them.  

The interest rates are competitive across the board, it's not going to come down to that for most buyers.National Bank: This is the 'standard,' the 'baseline,' what most people do. 5 year prepayment penalty is slightly unfortunate, as many pontificators say rates will be dropping "soon," and it may make refinancing a little more painful.