NJ is an Anti-Eviction state. 

-i tell everyone who walks through that I’ll email them the application link and explain details of the application process-EVERYONE who walks through gets an email thanking them with a link to the application (anti-discrimination)-I use Cozy for the application, but there are others that do it for you.

California is almost anti business/ anti landlord. 

I now call them the Bureau of Answers True and False:) If they are not anti-landlord, they should help.

During the worst of the crash I almost bought a brownstone rental in st Paul but decided MN was too anti rental owner and didn't want to risk a negative CF for a few years if my assumptions were too optimistic.

NJ Anti-Eviction is pretty stout, basically once a tenant is in you must give him a new lease if he wants one.

All traps should have had anti-freeze poured in (that's sinks, tubs, shower pans, toilet bowls).

Our lovely "anti-eviction statute".

There seems to be a lot of anti-gentrification and anti-development sentiment which concerns me a little.

You'll want to google Nj anti eviction act to see the various reasons someones tenancy can be terminated and the required notice periods.Your best bet is if tenant leaves voluntarily at end of lease and hence no notice required on your side.