Quote from @Deborah Wodell: Bought a property with what we thought had a side yard full of junk and then discovered it was actually a small neighboring lot with zoning and public nuisance fines.

Personally I'd prefer a single family over a condo just because of the control aspect and HOA nuisance. 

Agree, Ring or some other camera monitoring  system, security systems will  have issues with alarms &  beeping and other issues which might be a nuisance for guests. 

The News articles alone should show he's public nuisance. 

What measures have you taken to ensure some safety and deter local nuisance? Ive

For example, a homeowner could potentially act in the same nuisance ways. 

By sb1482 there cannot be a substantial change in lease terms but requiring notice to introduce animals, requiring keeping public/common areas free of junk, requiring her animal to be leashed in public/common areas, to require instant pet pick up in public/common areas are all reasonable terms, require the animal to not be a nuisance to other tenants (jumping on definitely is a nuisance, but I usually mean this to mean the dog cannot have excessive barking) and would be difficult for tenant to state are substantial change of terms as all those are reasonable requirements. 

You're also making those who don't like guns extremely uncomfortable and possibly creating an opportunity be harassed by LEOs under public nuisance laws.  

Get rid of the side with the tenant that needs the most work or seems like they would be a nuisance to you to have to live next to (30-60 day notice on their door when you close if they're month to month) - update it and get it ready to get market rent for when you plan to do another one a year to two years later. 

However, I am willing to let this tenant go as this appears to be a nuisance.