THE DOCUMENT YOU DISPLAYED IS NEITHER A VALID SUBPOENA OR SUMMONS!
Learn to read, and then go back and read the rules from the Florida courts (collier county) that I cited in my previous post.
If that isn't enough, here's something from Investopedia
Also, I went to the county clerk's website for Collier County, and did some very careful searching, and there's nothing that even remotely relates to InvestorsHub. I was a professional researcher, and I know how to search.