This person won't have a financial stake in your deal, but he will have great pride in showing you how a compitaint investor conducts them self. 

Is reasonable suspicion sufficiently rigorous to justify an eviction with this clause even without a police report?

This is known as the self-sufficiency rule.

I have used Thumbtack, Angieslist, and at this point I am just about ready to get my own general contractor's license and hire people to do the work my self. 

The most important characteristics, for me, in selecting a tenant are (1) stable job and sufficient verifiable income, (2) at least a mediocre credit score (600s, I have even accepted 500s, but will never go below that), and (3) general vibe of how much they want the property and how long they intend to stay - with #1 being the absolute most important. 

I used funds from my self-directed 401K.

This is known as the self-sufficiency rule.

Another great way to profit from real estate, and defer income taxes, is to buy and borrower through a Self-Directed IRA, such as those offered by Advanta and Nu-View.

he could not provide answers to all the fees.I quickly decided to invest into things I know.Since my money was 'qualified' retirement money, I needed a self directed ira.

All stuff you probably already know, Steven, but spelling it out for the benefit of others.The great part of Bigger Pockets is people get to see more than one approach so they can figure out which would work best for them and also learn new ways to look at it.I advise the opposite approach-  I believe in buying the same multi family, renovating it, renting to get the cash flow and sell in a year and a day so instead of paying the 25-28% federal, 7% state and 12% SS (adjusted for self employee deduction) for an approx. 44% tax rate, I pay 15% federal and 7% state with no SS for a 22% capital gains rate.