You can run the risk of fighting the tenant and going to court which is likely to well exceed the cost of rent you would receive as well as the mental capacity you've already spent on this issue if you lose (which by this thread most are in agreement that you are on the losing side) You'd also lose the tenant and have to make necessary repairs, marketing, and showings for the next tenant. 

He has 30 plus dogs that fight all day long and bark all day.

For that reason, I have updated the precautions and practices I have established to help prevent the spread of germs and prioritize the health and wellness of everyone involved.

Pick your fights carefully or you waste your $170 every time..For non payment always rely on a L9, do not waste your time filing a N4 it is simply a get out of jail free card for a tenant.

I thought I could fight this on my own but now strongly considering hiring an eviction lawyer since she also has a criminal investigation case for the building department passing inspection on the house when she believes it should not have been passed

(If they fight you, you might lose) and I would not renew.

It's philosophically hard to let the guy walk, but we need to know when we're fighting a battle we're unlikely to win. 

Then file with Small claims court and fight it.

I don't do this because the co-signers tend to fight when I try to hold them responsible.

Why are they even fighting it ?