I’m in north NJ and was just looking online at properties in Allentown as I read that  it was a good investment area and it didn’t make sense to me.  

Join local real estate investment clubs, attend seminars, or engage in online forums to stay updated on the latest trends and strategies.Remember, real estate investing is not a get-rich-quick scheme.

Searching online, it seems all the property managers have awful reviews. 

The information he offers is readily available for free on BiggerPockets or online.

There's no shortage of clickbait articles online, including many on BiggerPockets, that claim to reveal "The Best Market for Real Estate Investment."

I used to use a PO box but it sat collecting dust for years so I don't bother anymore...I've had people find my personal residence by looking me up on the online tax records. 

I actually know one, she gets homes on MLS at 1/3 of ARV (really FUBAR homes), spends another 1/3 on rehabbing and then sells for retail to profit.  

There is absolutely nothing he shared that you can't find online or here on BP.

Online real estate sites such as Trulia, Zillow, Redfin, Realtor.com, and LoopNet.

Texas allows online sales now, but not many places doing it.