They also recommended newer toilets that flushed better.I had clog issues over the years, and plumbers usually can tell me what caused it, like a tenant flushing down left over food, diaper's and I can then confront the tenant.

Obviously you can't discriminate, but maybe renting to a bunch of first time out of the house college kids isn't the smartest move if 95% of the community is older residents (seen this done more than once).It's also going to depend on your ability to confront the tenant when something goes wrong.

She gave me declaration after I confronted her about not using my property for commercial use which I have it written in our month to month lease.

I leave tell her to get out NOW before the cops come, then I go around the corner to call 911, several houses down, to avoid confrontation.

I do not mean to scare you but the least confrontation you have the better At this point just let the process play out.

If your PM does not have a marketing strategy in place make sure to confront them about it. 

Are you willing to confront tenants about their rent or complaints filed against them?

they also changed their name recently probably due to claims avoidance in the courts the new name is greystone buyer beware don't get fooled like I did, when confronted with the bad deal they say oh cmon you can make money right away local realtor with the comps says ya right I will have to add 2 more years now to my roi time at a min

On one hand you might be doing them a favor by urging this couple to confront her declining health and consider an assisted living arrangement or possibly moving closer to a supporting family (maybe the kids?).

If you are aggressive or confrontational they will dig their heels in and make things as difficult as possible for you.