There are no guaranteed results in family law, especially if you are seeking a parenting plan modification, which are disfavored. However, the conduct you report sounds serious enough to consider seeking only supervised residential time for the father, and sole decision-making for you.
If you choose to litigate, I believe that seeking a parenting evaluation, a DV evaluation, or appointment of a guardian ad litem in a temporary order may be looked on favorably by the court. Any of them would inject a neutral, independent third party to help the court weigh the parties' conflicting tales.
I recommend you confer with an experienced family law attorney in your area regarding your next move. The way I see it, it's either dispute resolution as provided in your parenting plan, modification, and/or contempt. I'd have to see your actual Final Orders to determine the best course of action.
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