Removing squatters from foreclosed property

[Peter Matthews]

I'm about to close on a purchase of a bank owned two unit rental.  The bank is, of course, unwilling to provide any information about the person occupying one unit (the other is vacant.)  I'm in tenant friendly NJ.  Does anyone have advice re removing this person if he/she becomes a squatter?  It's possible the person has a medical condition.  Thanks

[Nathan Gesner]

Google is your friend! Here's a nice guide to New Jersey Eviction Law.

Your question indicates you have no experience. You don't know the law and you apparently didn't even take the time required to search Google (it took me less than a minute to search, find the resource, and post the link in this response). If you believe you are prepared to handle an eviction on your own in a Tenant-friendly state like NJ, you are fooling yourself. 

Start looking for an experienced eviction attorney immediately. Hire them and let them handle it.