So a little bit of background. My SO has 50/50 custody. At pick up Wednesday he gave BM a letter that had the vaca week he picked for this year and that he had not picked a second week yet but he would give 30 days notice when he had(the CO states that this year he chooses his 2 weeks first, by feb 28th, and then BM can and if they do not by feb 28th they must give 30 days notice). He also gave BM a second copy of the letter and asked her to please sign it and give it back to him and he said he would do the same for her.(so that there was no confusion etc later on in the year about whose time it is and all that and so there is written proof) She refuses to email and deleted her email address so this seemed like the best way.
So at this pick up she told SO(for the second time) that he is not "allowed" to trim LO's nails and that he needed to remove the nail polish on her fingers and only she is allowed to paint her nails. Well she is only 2 and her nails were to long and she ended up scratching herself which has happened a few times lately and she kept saying her fingers were "sharp" so he trimmed them and he did not end up removing the nail polish since she loves having her nails painted and it was pink sparkles that had mostly chipped off anyways. So when he dropped of LO today BM looked at her fingers and said she would not be signing the paper about vaca because he didn't "listen to her and do what she said" and that until he started doing what she said she would not be listening to him anymore.
So since the CO states the vacation days need to be submitted by writing and it needs to be by Feb 28th SO was thinking of sending a certified letter so he would have proof that she was informed of that dates, does this sound like a good idea or no? He just wants to make sure he is covered, especially since one vaca week is in November, since she is very likely to say that his vaca was actually earlier and he just didn't take it and he can't take LO now etc. Thanks everyone.