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. 

Boiler/ water heater- leaking relief valve, relief valve pipe missing or too short.

You may also want to present a detailed breakdown of the property's current condition and any factors that might affect its value negatively.Explore Tax Relief Programs: While you mentioned that you don't qualify for tax breaks as the property is not your primary residence and you're under 65, it's worth investigating if there are any other tax relief programs or exemptions available in your area.

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? 

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 get busy, figure I'll hear back, but finally email her 5/16(yeah, too long, but my area has an IRS disaster relief allow returns delayed till mid June).