Having knowledgeable people helping you will vastly increase your chances of success.  

You need a place to live no matter what, and I can't imagine rents are very cheap in Portland, so you're usually better off at least having the benefits of a little tax writeoff and mortgage paydown while you own, plus being able to paint the walls the colors you want, etc.I'd hang tight if I were you, see if your market goes up a bit more over the next few years (which I personally believe many will, just my professional opinion,) and try to refi and dump your mortgage insurance (assuming you have it) as soon as possible.In the meantime, hang onto your $50,000, keep growing it, and wait for the right deal.

I increased the maintenance and repairs numbers to account for any possible deferred maintenance.

My attorney was a little suspect at why they would be willing to do this, and said I may have issues on my resale if not at the same title company, or by any future seller after me- but that my liability would be limited to the increase in value above the amount of my policy.  

-depending on sale price, cap rate will be in the 8.8%-9.3% range(rent increases each year).

If you want to introduce new rules or increase rents etc. they can simply withhold the rents and you go bankrupt.Not a good investment risk.

If they are, you'll be restricted on increasing income and may even have to lower your rents if the utility allowances increase from year to year.Just a few things to consider.

Plus comparing that to investing in stocks.Based on what you just said, let's say the property increase by 10% every year. 

Unless you create one site/branding per property, that sells with the property,  which increases the required effort, but then not all buyers are interested in STR.

I know this because I happen to be born and raised in in some of the hottest areas in the city right now.Since I'm black and from these areas, I personally  have no problem renting to low income people,  or people of color.