I got divorced in 2010, started the process in 2007. It took that long because exH kept not replying to letters, querying stuff etc etc.
He had to do his Form E (financial declaration) 3 times because he kept "forgetting " accounts.
I did mine once, then had to update it because 6 months had passed and I was more in debt...
Anyway, if you haven't already done it, get together all your financial paperwork, showing all your debts and assets, and all of your husband's too if possible.
If the solicitor can get an overview of finances he can give you a better idea of what outcomes are possible/probable.
The starting point is a 50:50 division of assets.
As there are children involved, the court want to ensure that the primary carer has adequate housing for them and the children. So there may be a different asset split.
Child maintenance is payable to the person who has the children living with them the majority of the time.
Hence why many men go for 50:50, but rarely actually do it.
That's why keeping a record of who has care at what time is very important.
I would go on record to him, by email, that if he wants 50:50 care of the children then it should start straight away. Both of you need "headspace" to come to terms with this new situation, not just him.
Then if he doesn't do it, it will be harder for him to argue for it later on.
It's rare to get spousal support, but it is possible (I did).
Also consider pension sharing (ie getting a share of his pension, depending on your age and if you have been working after having kids, and whether thats been full or part-time, and in your usual type of role).
All of this is negotiable. You could offset not getting spousal support by getting a share of his pension, for example...
If I think of anything else I'll add it later!