You can also check meetup.com or search Facebook for real estate investment groups, clubs, or meetings in your area.I'm in a small town where networking is impossible, so I do it online through facebook groups and BiggerPockets.

So many people out there ,  that have online courses.

There are a lot of online sources out there versus going to the local courthouse.   

In the old days, I would advertise in the Fresno Bee, and in the local freebee advertising rag.Nowadays, everything seems to be going online. 

Courses online are relatively cheap and there's some brokerages like kw that have offered free online courses with no obligation to join afterwards.

.-- All the info you need is available online from the local assessor, and pay attention to what the local community has tacked on to the mill rate.

From time to time we also hold an online meeting for talking about a specific topic.    

And once the houses are up, are prices going to come down as new units come online but homebuyers pool increases continuously while they all have $25k?

If the owner is an LLC, you can try to check online Corporate records to see who the agent for the LCL is and their address.

They create some online content and a FB group with all the victims and some of their admin people and sell these courses (docs)  for a huge fee.