My advice (and in my former life I was a solicitor) - is to go talk to a solicitor - about the exact circumstances of your marriage and get them to give you advice based on that, as to what percentage of the property you would be entitled to. At least then, you'll have a clear idea of your legal position. You don't have to go through the courts to utilise a lawyer's expertise.
Chances are too, that you'll need a lawyer to draw up the financial settlement documents (to ensure they are binding, to discharge mortgages etc), so you might as well start off with the advice now to save time later (eg agreeing and then going to see a lawyer that suggests what you are getting is not what you should be entitled too).
I know it will cost money, and it may cost a fair bit - but think of what not going to a solicitor could cost you - you could miss out on what is rightly yours. Additionally, most solicitors, if they are assisting you, will be happy to wait until the property settlement is completed before asking for the bill to be paid. Alternatively, you could utilise a free legal service - I don't know where you are but if you google community legal centres - a list should come up and you can find one near you (alternatively many offer telephone advice).
Also, the other benefit that I see of having a solicitor involved, is if there are problems with enforcing the agreement (ie signing over an asset)- and there often can be delays - it's much easier to resolve.
I was stupid enough to settle with 31% of our property and 86% care of the kids.
PLEASE Do not make the same mistake i did and take the easy way out.
All i took was my car and a few household things (fridge and vac) I wanted it to be over but in hindsight i should have fought for 50% or more. I struggle now every week.
Make sure you go to a solicitor and get the orders done!!! It can be expensive but its totally worth it. Try and find a solicitor that will let you pay the fees off. I am still paying off mine from more than 12 months ago!
Im so sorry you are going through this, if you ever need a chat feel free to PM me.