Presentation of the document in a prior proceeding does not excuse a failure to produce the document in the current proceeding should it be subject to an unobjected to discovery request from the other side. So, again, it doesn't matter if you've produced it in another proceeding if they asked for it in this proceeding and you did not give it to them. However, if they haven't asked for it, then you should be able to present it without an objection about it not having been produced. That does not mean that there won't be some other objection about it. You will have to address these objections when they are made. One other suggest is to make sure you file an exhibit that is your affidavit which states why the documents are authentic (i.e., they are business records).
I don't think you should argue the point regarding the notice of termination in your initial motion. That would be making the other side's argument for them. They have to bring up that point, and once they do, you would respond to their argument. So perhaps we should not address this issue until it comes up in their response.
In regard to researching the court's prior rulings, you can go to the court clerk and ask to look through the judge's past summary judgment rulings. However, most rulings from a circuit court are not written. It is only when it gets to the appellate level that the opinions on summary judgment are written down generally. Another way to get access to this information is to go to the local county law library and search in the case law regarding the judge's name.
A separate way would be to start another question thread here and provide the judge's name.
Since you have a subscription, for each new question, start a new post. This will allow us to have more than one attorney answering your question. Also, we only get paid on each credit, so if you keep asking questions in this one thread, I get paid for only answering one. I tell you this because you are likely going to have a lot of questions while writing your MSJ and it would only be fair to us that we receive separate credit for the different questions.