Be diligent in your screening process.As for rules and regulations, call the city and ask. 

Owners mistakenly ASSUME all PMCs offer the exact SAME SERVICES and PERFORM those services EXACTLY THE SAME WAY, so price is the only differentiator.So, the first question they usually ask a PMC is about fees - instead of asking about services and HOW those services are executed.EXAMPLE: PMC states they will handle tenant screening – what does that specifically mean?

I might encourage you to drop your screening fee - I don't know how much your screening company charges you, but $50/adult might be a deterrent (or you could say it's refundable if they don't qualify).

Call the companies that advertise on the radio and TV, find as many local RE meetups as you can and approach the organizers.

I only have 5 to 12 showings and 1 or 2 applications, but I screen out unqualified early so as not to waste time.

Look at the map and somewhere in a corner there should be some ratio of length that changes as you zoom in.Now from that ration with your ruler measure the house on your screen  (in map view) and you can get reasonably accurate numbers.

Make a PDF or JPG of a screen shot showing the time sent, and probably a hard copy print out wouldn't be a bad idea either-- all of this is likely overkill, but not bad practice for "just in case". 

It's a great screening tool. ;)

We don’t know any PMCs to recommend in the NJ area mentioned, but since selecting the wrong PMC is usually more harmful than selecting a bad tenant, you might want to read our series about “How to Screen a PMC Better than a Tenant”:https://www.biggerpockets.com/member-blogs/3094/91877-how-to-screen-a-pmc-better-than-a-tenant-part-1-services-and-processesWe recommend you get management contracts from several PMCs and compare the services they cover and, more importantly, what they each don’t cover.

How to screen rental property management companies , things to avoid, things to look for.