Personally we have had great experience so far.

I doubt they will pay, but at least it's an early exist to get the house on the market quickly.Thanks so much for the perspective and advice!

It’s either that or to live with it.A side note: it might be that the owner is a slumlord, not because he/she is an evil person, but is simply a good intentioned person who doesn’t know what he’s doing.

I have a tenant who knows I am the owner, and I personally prefer that. 

HiCan I as the administrator of the deceased estate use a PO Box for the administrator address and not my personal address?

I do that personally...and my employer does it as well. 

I am aware that NJ has a personal occupancy provision in which the landlord gives at least 2 months written notice stating that the owner would like to occupy the downstairs unit once the tenants lease expires.

I also own a personal vacation home in the Poconos.

So I bought this house for me as personal residence & did live there the 1st year.

And we've done it with the stock market almost fully recovered back near ATH's, the housing market staying strong despite huge changes to interest rates, etc.Maybe it's all a mirage and one last hurrah to hold on before the big crash everyone has been anticipating finally does come, and I've been a bit of a doom and gloomer myself, but I think if you'd asked a year ago if it were possible to get back to 3% inflation in a year with the stock market within 5% of all-time highs and housing prices still within 5% of the peak every single person would have said it was impossible.