Please advice on how i can tackle this shady behavior of the Broker.

The ones who made me unhappy were the ones who never took my concerns seriously (never dealt with disruptive behavior from other tenants, etc.), were slow and grudging to respond to maintenance requests, and one really memorable lady who used me as her personal ATM because she didn't want to get a job of her own.

But is does provide at least some basis for what seems to be "irrational" market behavior.

I'd use this opportunity to let her know this behavior is absolutely unacceptable.  

What rules govern my behavior as a borrower/business?

Although many investors don't make a visit first, I consider that high risk behavior.  

Financial Knowledge and Decision-Making.While many American adults believed they were adept at dealing with day-to-day financial matters, they nevertheless engaged in financial behaviors that generated expenses and fees and exhibited a marked inability to do basic interest calculations and other math-oriented tasks.

I also know many of these same people lost everything, due to the behavior of a single tenant that is known as a "Professional Tenant," or maybe an inadvertent accident occurred.

That being said, I'm compulsive and manage just 1 extra mortgage payment in principle per year.

I trust most active landlords have heard of the April 4, 2016 "Office of General Counsel Guidance on Application of Fair Housing Act Standards to the Use of Criminal Records by Providers of Housing and Real Estate-Related Transactions" For those of you who have read the guidance, what "policies and practices" have you put in place for specific prior criminal behavior?