I've been so busy these past 6 months that I haven't had time to look back at the site.

If you go to the property appraiser's website, you can probably  look at the year over year change in the taxable value of the property.  

Would love to form connections through this site !

I have long form articles on both this Fair Housing law with section 8 and the scam tenants with fake info on our website.  

Law websites like nolo and others have said if the tenant in NJ has made partial payments then you have to give them 30-day notice before you begin the eviction process.

Does anyone recommend knowledge sources on building a mobile home parks (websites, books, organizations, plans, etc..). 

I would recommend you start your search on the NARPM website.

Then you can check AirDNA.co (or similar site). 

Go to Etsy and search for "rental property tracker," and you will find hundreds of nice spreadsheets to track 10-20 rentals, usually for under $10.Software has extremely helpful features like online payments, marketing syndication (click a button, and your property is advertised on multiple sites), electronic document review/signing, maintenance tracking, and owner reports.

A new site for NH foreclosure auctions just launched called Bid Pirate, worth investigating.