Hi,
This may be long! I don't want to drip feed, there's so much information but I don't know where to start 
Main points;
Been with DH 8 years.
Married for 5 years.
I have dd16.
He has no dc's.
We have no dc's together.
We have a mortgage.
He paid deposit on home.
I've never been put on mortgage.
I am due an inheritance soon.
He is self employed.
I'm employed full time.
The previous relationship I was in (with dd's dad) was very abusive. I left him 11 years ago. I carried on living in the family home with my young dd. Ex paid half of he mortgage while I paid the other half plus all the bills.
When I moved in with current DH he took out the mortgage in his name and paid the deposit. My name was still on previous property. Once I was released from the mortgage (I walked away with nothing by choice as I wanted complete freedom from abusive ex), I moved in with DH. I'm a nurse, but due to childcare at that time (ex took no responsibility for dd back then), I left my job to work on the nurse bank...zero hour contract so I wasn't able to go on the mortgage for current home. During the time I was working on the nurse bank I was only able to work 1-2 shifts a week due to childcare, so current DH and I calculated what percentage I would pay (calculated based on both of our earnings). So he paid about 70% for a while as he earned a lot more. It's lasted a couple of years then it was split 50:50.
Things stabilised job wise and with dd seeing her dad, then DH and I got married. I never pursued my name going on them mortgage as I (?wrongly?) assumed that being married gave me some rights.
We hit a rocky patch a year or so ago but managed to get through it. During this time he said that the house is his as he put down the deposit and my name is not on the mortgage. He even got his bank to send him out all his statements going back years, and he highlighted every extra payment he made, or when he had paid for things such as nights away etc. He was all set to present it to a solicitor if needed, to prove I had not paid half equally throughout our relationship.
Unfortunately my DF passed away this year. I am due to inherit half of his estate, however at the moment I don't know the full value. My DF has about £35k in the bank but this won't be released until the house is sold. The house will be put on the market hopefully in February and should fetch about £50-60k as it is in disrepair, and not in a desirable area. One pension company is dragging heels in paying out. My DF has an extensive collection of niche items, which will be sold however at this point we don't know the potential value let alone if it will realise the potential.
I want to separate from my DH as he is not the man I married. Over the (only 5) years we've been married he has become very stubborn. Does things to prove a point and always has to be right. He also doesn't like my DD very much. He's on her case quite a lot and is quite strict with her. So I've decided it'll just be me and my DD from now on.
So my question is this. If we separate then divorce, will DH be entitled to any of my inheritance? I'm not really interested in going after half of the house. There is about £50k equity in the house but I'm willing to walk away, as he will do everything to stop me from taking half (if I'm entitled to it).
I'm willing to walk away from a house once again if it means a clean break however I'm worried he will come after what my dad left me. My dad was left destitute after my mother left him. He managed to get himself back above water financially plus more, and it would break my heart to hand over some of that to someone I don't want to share my life with.
I've spoken to my DSis about this over the weekend and she has suggested I contact the solicitor dealing with my dads estate. And also arrange to have it documented legally that we have separated.
I know the best thing is for us to separate however I'm scared of the road ahead. I'll be starting with absolutely nothing. No home or furniture, nothing. I need a hand hold and some advice please.
I'm in Scotland, if that makes a difference. Tia.