Ex and I split in 2017. We have three kids who are now 14,12 and 7. Since the split he has had them every other Friday to Thursday term time with me having them all half terms and half each of Easter, Christmas and summer (I work term time only, he doesn't). It worked fairly well. I do all the kids' life admin, appointments etc and have occasionally been frustrated with things like he isn't consistent about rules to do with phone use at night for our daughter who is 12 and has a few mental health struggles but in general it was ok. We used the gov.uk calculator to work out maintenance based on this amount of nights per year and his salary back in 2017 and he paid that monthly ever since, no change. He is still in the same job although I don't know his current salary. He bought a house nearby and has done it up very nicely. He is not hard up.
At the end of 2021 I inherited some money, some of which I invested and some of which I put aside to extend my house. The work is starting next month. The week after I inherited (he knows this because it was the proceeds of a probate house sale) he messaged to say he wants the kids 50:50. He admitted fairly quickly that he doesn't see why he should pay anything to me now I'm "financially independent". I was very upset by this and accused him of trying to appropriate the money left to me by my parents. He denied this, while still being clear that asking for more contact is about the money for him.
I really don't want to change the kids' arrangements. What he has with them is enough. I suggested he keep contact the same but reduce the maintenance by 45% and he agreed after a very expensive mediation session. This idea was stupid of me because I don't think I can afford to pay all the bills now. I've cut back on more or less all luxuries and am just managing but will have to dip into savings for any emergencies and to buy kids birthday gifts etc.
I am thinking of using the CMS to pursue him for maintenance calculated on his salary and fully expect him to then apply for a court order to get 50:50 contact.
My questions are:
How long will CMS take to process my claim? If anyone with experience can let me know I'd be v grateful.
How long will family court proceedings take to reach a resolution in these covid times?
I am fairly confident he won't be successful in his application to change contact because my solicitor told me the court is very reluctant to change the status quo unless it is demonstrated to be in children's best interests. I think I can argue that it's in their interests to leave things as they are. I'd like a resolution though because I'm very stressed about this.
Thanks for reading! Any advice/anecdotes gratefully received; thank you.