When you order a tenant screening report, you should get a credit score and criminal background check. 

If a tenant has a recent or lengthy criminal rap sheet, look the other way.

Just read all of the comments on their posts and you will soon realize that they are criminals,.

Criminals will steal your A/C for 50$ of scrap metal and cost you thousands.

You aren't allowed to consider criminal history except for sex crimes as part of a background check,  and you must accept the first qualified application according to your (legal) rental criteria.  

Accusing someone of theft is a fairly serious accusation which could result in the termination of ones employment and/or criminal charges. 

Criminals and evil people can always buy weapons, and no law we put into place will stop that.

So, you admit that engaging in criminal activities is OK as long as its profitable?

Most criminals won't spend too much time trying to figure out if the dog is real or not and will probably just move on to an easier target.

Oftentimes the investor ends up hiring people off of craigslist who do the job wrong, don't complete the job or steal the investors money.If by some miracle the work is completed the criminals in the neighborhood simply steal everything of value and the process starts over again.