I bet the rate of Engineers going homeless is all but 0. 

Best bet is to carefully analyze the zoning maps and regulations or just call the town and ask.

It markets our properties, screens our tenants, collects our rent, deposits it into our bank accounts, has full accounting and reporting features, has a tenant facing web portal & app where tenants can log in and report maintenance issues and see their account, etc, for $2/door/month - but they have a $45 minimum monthly fee... so up until you cross 22 doors it would be $45.

When you have a duplex and tenants on both sides stay for ten years, it almost guarantees that something isn't right.I would study your market and determine the value of your rental, because I bet you are losing money every month.

I bet you were floored when the person ordered every package you had to offer!!

You can just answer it without the jazz, and I bet you know a few places right off top of head where people WANT to live, right. 

Your best bet is to keep liquid cash and avoid PMI.

I bet that you can pay off this debt in 1 year or much less.

I’m hoping to find more success in Phoenix, but as you stated, the old fashioned way may be my best bet.

I'm not sure if we can like to articles on our own websites here, so to be safe I'll just suggest the IRS web page, which does do a pretty good job of explaining the basics: https://www.irs.gov/taxtopics/tc510The main thing to know if you're going to claim business miles is that you do need to keep a log of every business trip.