Oh, and I wouldn't worry too much about D's schooling questions. If you can just show that you have an apptmt with the superintendent and have plans to enroll her in school next semester (which WAS your plan anyway, right?) it should be ok. Pretty sure Smokey is not actually looking for custody so don't sweat it. Plus with his track record of limited visitation he wouldn't get it anyway. He may get a "standard" visitation agreement of part of summer and holidays....don't sweat that either, he probably won't end up taking it all anyway.
And I wouldn't pursue the drug addiction angle unless you can prove he's drinking heavily or using other drugs stronger than pot. In this day and age of legalized marijuana I don't think you'll get very far with accusing him of pot addiction (even though that is a real thing). It might backfire on you and just make you look like a hysterical woman.
It's most important that you come of calm cool and collected. You have gotten a job outside the home despite having a special-needs kid. H did nothing to help with upkeep and repair of the home that he abandoned you in - document all the things YOU did to repair and maintain that home. All you are asking for is child support and your fair share of marital assets. H had an affair and left you to raise the girls on your own. The court just wants the facts (and if your is a no-fault state, they won't even care about the affair).
The judge just wants to hear the facts, no emotion. This is business.