You have to be prepared to learn and screen out tenants and that only comes with experience.

This takes some preparation and research, as well as a built up self-confidence, in order to achieve the desired result.

Before I call I take the time to look at their property online and learn what I can about the house; I start a property info form on the house and then I call, prepared and ready to deal, knowing that I will have to listen to their story if I want them to hear mine.

A laboring GC still needs to put food on the table.

Food for thought.

I could have ignored their request but the result will be 4 mini-fridges which will just waste electricity and leave food & crumbs in the rooms....bringing bugs.

You do need a good accountant, I suggest a degreed accountant not a tax preparer bookkeeper type unless the specialize in construction and RE.

College wouldn't prepare you for what it sounds like your passionate with - in my opinion.

Throw in a round trip plane ticket, hotel, rental car, food, etc. and it doesn't take long before a short trip can cost you $2K if you're going back east.  

Haha, not really but some good food for thought.To address your question I think one of your best bets would be doing a nonconforming duplex in Ballard or Wallingford.