You can also check meetup.com or search facebook for real estate investment groups, clubs, or meetings in your area.If you can swing a hammer, you should be able to find someone that will exchange knowledge for a little elbow grease.

Posting on LinkedIn and Facebook weekly5.

I always advocate for joining investor groups on social media (Facebook) for that locale or region that you're interested in.

@Horacio GutierrezAre you referencing to the tax/irs status of real estate professional?

If used, likely Facebook marketplace.

You might want to consider A facebook business page, google business page (google maps), and maybe a website from Carrot. 

Is there some sort of accepted criteria for establishing the status?

I tend to look at local ads on Craigslist, Zillow, Facebook, etc to see the number of vacancies.

Imagine if your contractor gave you daily status reports on each project you have rather than chasing the contractor down for information?

But for JV's whether they are paying or not I also send a report every quarter that includes an export of all the Quickbooks data and a current status.