I'm Doug, and I'm sorry to hear of the confusion. My goal is to provide you with excellent service today.
I'm very sorry to tell you that I must believe that either the judge misspoke, or you misunderstood what was said at the pre-hearing. Either way, the failure to object would not make the otherrwise disallowed act allowed.
I can assure you that in no jurisdiction may a non-attorney, pro se litigant issue their own subpoenas. A subpoena to compel a witness to testify in a court hearing may only be issued by a clerk of the court, an officer of the court or a licensed attorney who is representing a party in a matter of litigation. That is the law.
As a consequence, when you issued your own subpoenas for witnesses, is rendered those subpoenas defective, and the witnesses may legally ignore them, and without fear of any penalty. Worse, if you are relying on these witnesses to prove your case, then you may well fail to adequately defend or prosecute your case, and lose.
You wrote: What's more disconcerting is that my opposing counsel said some attorney is representing a lot of my witnesses and informed her that he is advising them not to show up because of an invalid subpoena. This is entirely legal to do. She left the attorney's name out, but I believe this attorney I may have contacted to take my case for me and now is turning around and representing my witnesses. If this is the case, it borders on unethical behavior---but I don't believe it crosses that line . As the attorney is not specifically representing a party to the action whom you have sued (apposing party), they probably will not be found to have violated any law. He is known for unethical behavior and has been barred before. My opposing counsel went on to say that the witnesses have conferred with one another. It is quite common for witnesses to speak with one another---and the way to deal with that in during questioning at the hearing or trial that they are subpoenaed to. You cannot prevent them from speaking to each other though.
Your witness subpoenas are not valid for your intended purpose, and I strongly recommend that you go to the court today and have subpoenas properly issued by the clerk so that you can get them served in time for your hearing/trial.
You may reply back to me again, using the Reply to Expert link, if you have additional questions.
I wish you the best in your future,