Hello sid .. and welcome to wiki. Sorry to hear about your situation . there are a lot of us here in the same boat.
The simple answer to your question is yes. Take a look at this:
http://www.wikivorce.com/divorce/Divorce-Forum/Court-preparation/53387-WHAT-DOES-THE-COURT-CONSIDER-
WHEN-SPLITTING-ASSETS.html#53387The more complicated answer is yes but it depends.
After a 22 year marriage every asset you have will be considered joint ... that includes pensions, savings etc as well as the house ... it does not matter whose name it is in or who has paid for it.
First priority is to house the parent with care .. and the children. Next is appropriate housing for the other stbx ... ideally large enough for kids to come and stay. It is a good idea to check out housing options and prices in your area to see what can be bought. Also check out your mortgage-ability to work out what can be afforded and how much capital wd be needed apiece. There are options for preserving your "share" - including having a charge on the property - or any property that is bought - that is exercised when certain conditions are met .. such as youngest child reaching 18. This is called a mesher order.
If you have a pension and she does not, she may get a larger share of the property in return for no share of the pension
If you are now PWC you will need to pay child maintenance - 20% of net income for 2 under 18s in f/t education.
If you possibly can, do try to work the finances out amicably - you can get a consent order OKd by a judge and it is the cheapest option - see wiki home page for info.
Wikipeeps can help you work out what is fair if you post details of ages, incomes, assets , pensions etc.
Hadenoughnow