Had to evict someone once. Months and legal fees. Two things or lawyer told us, NJ is strongly tenant friendly and he would never own rental property in NJ, and if the loser declares bankruptcy he can delay the process at least another year.
Heard a story on the radio once, can't vouch for truth. Landlord had rented to a family and they immediately stopped paying, knew all the tricks and worked the system, apparently went from house to house every few years without paying. After 6 months or so the landlord waited for them to go to work (they had money, just didn't pay), brought in moving company and packed up their whole house and put in storage, first month was $1. Changed the locks and waited for them to come home. Told them they were out and gave them the information where their stuff was stored. Tenants called police and they hear them both out and then said this is a civil matter and left. Tenants left and never heard from again. Sometimes dealing with scumbags you gotta be one.