When the public threw out the leftist politicians who were worried about criminals “rights” rather than victims rights and eased regulations on business, encouraged new construction rather than prohibiting it, the NYC turned around.  

The criminal background check came up clear but I found out that the male tenant had case against him that caused him to loose his job at the school due to inappropriate behavior.

I require a social security number to run a credit/criminal background on every adult.

Since I didn't have proof who pulled the scheme, I couldn't prosecute.

Persons with a criminal record are not a protected class.

But when one of the parties is licensed by a governmental board of some sort, the board can subject the licensed individual to higher standards behavior, and they can do this largely at will and without the higher thresholds of most criminal laws.

However I realized that they no longer have the criminal backgrounding screening feature available.

But it does give someone peace of mind that the contractor is no criminal, credit worthy, insured, and experienced.  

This is fraud and criminal.

Tenant on government assistance, known drug dealer and suspected of various crimes including two murders, arson etc (prime suspect never prosecuted).