But all of them chose to flee instead of confrontation.

there is a whole nother level of emotion though when your confronted with a hold over home owner .. 

If by chance this happens, it is best to not confront the beast but to keep your distance until the courts can set it free!

Regardless of your decision you need a talk with him (non confrontational) to discuss your concerns about his approach.Good luck

I waited until after I received rent payment for October to confront the tenants.

Harder for you to confront them over any issues if you are depending on them for anything5.

She did not really like that  I was confronting her and I sense a little bit of attitude on her end.

When confronted about this he became very belligerent and vindictive.

At the same time I don't want to put my other tenants in a position that could start a confrontation.

I confronted him and gave him notices he then stopped paying rent and I started the eviction process, he decided to leave right before I had the sheriff serve him, but it was about a 3 week process from the first notice to him texting me saying "the keys in the door" and "TY have a GREAT day :)" My attorney said it probably wouldn't be worth bringing him to court.