But with most of the staff laid off, who is going to police the sponsors? 

Police presence is heavier and there is a proposal to open a new police station right on Frankford ave. https://philadelphia.cbslocal.com/2020/10/12/proposed-new-police-district-in-kensington-a-very-giant-leap-to-cut-down-on-crime-drugs/I plan on doing some of the work in house.

I have a friend who separated who did and still does the same thing; she works as a dog trainer supporting general obedience training and agency/police/security canine detection work. 

@Gary LiOh, well, my regular insurance will only issue three rental property polices. 

Maybe call the board of education and ask, or the PTA, or (seriously) the local precinct Police Department.A (steady) trajectory....steady (???)

Any ideas (preferably not involving them calling the police to come talk to them)?

@Niti Palak tell the neighbors to call the police with a noise complaint.

Mods chastise people who correct people who post completely ignorant information instead of policing the quality of the information posted here.

There is also another property tax that has nothing to do with your property value but can be based on special projects like flood mitigation, building a new police station, road restructuring, etc. 

The business was just recently  raided multiple times by the police for selling illegal substances.