In one federal district court case, a court found that a tenant could proceed with a disability discrimination case where a housing provider charged a fee for untrained assistance animals like emotional support animals, but waived the fee for trained assistance animals like guide dogs."

All my tenants are excellent as a result of my diligence in both training and insuring the untrainable are eliminated.

The neighbor across the street has a teeny-tiny dog and it's totally untrained and obnoxious.  

For some, this is enough to get them in line - for the others (the untrainable) we simply raise their rent at renewal time. 

Its presence may exist without the knowledge of the structure owner and may be concealed from the untrained observer.

A untrained person can kick your door in a few seconds.I'm more worried about a quirky issue where your key stops working as I have heard a few talk about issues like that.

With my untrained eye, It needs a kitchen and bath overhaul in both units (so 2 kitchens and 2 baths), all new floors except good hardwood in larger unit, a paint job and some yard work.

Still there are many potential issues with improved property the untrained eye may miss. 

Anything with teeth can bite and I'd much rather be in the room with a fully trained Doberman than a untrained chow or lab.    

And hence, that attorneys justify why it makes sense to charge people for both sides to an argument.It doesn't, however, mean that it is reasonable to charge people for those fees, when they aren't necessary.In this case, however, it's really obvious, even to the untrained eye or untrained legal expert, that this landlord had a responsibility to the neighbor.