No we don't have it in writing. We have verbally agreed it.
We do have 2 children aged 4 and 8.
He moved away last July so was living away during the week and renting a property, coming back at weekends. We agreed a percentage split of all the bills relating to our property dependent on our salaries at that time. He then gave me £200 pm towards food/house keeping.
In March this year we agreed to properly separate, he moved closer to home but now doesn't come back at weekends. We put the property on the market and have now sold. We have said that once sold we shall settle all remaining joint debts (we listed them back in July) and whatever is remaining is split 50/50. He hasn't yet said how much maintenance he will give me.
We are both working but he is self employed and earns significantly more than I do.
I have been looking for somewhere to rent but I'm also looking at a shared ownership property. I have an appointment this week to see if I can get a mortgage based on just my income (without any maintenance).
If I can get a mortgage my parents have said they could put in some capital so we could buy a place between us and we could some something like the shared ownership scheme, only with them rather than the housing association. My only concern there is if my husband could then claim a share in the property if we fell out before going through divorce.