Hi -- It's not so much legal advice that you need at this stage... as you always will have the legal right to either insist your Mother pays you out for your share, or failing that possibility puts the house on the open market, even buy her out. ?

More to the point, you're going to have to sit down with you're Mum no matter how domineering she may be and explain over & over again, until she fully understands and appreciates your point of view, that it's only fair that you should be allowed to lead an independent new life with your partner and that you are not doing this to upset her in anyway.

The sooner she understands and is convinced this is only normal for someone of your age, the sooner she will voluntarily take action to ensure that you are happy and respect your wishes.. therefore allowing you to lead your own life.

Once she realises the error of her ways, she will be more willing to come to an amicable arrangement regarding the property, this should be a priority before any form of legal pressure is applied which is costly and should be uneccessary... if you go about it in the correct way. You only have one Mum... do not resort to legal action against her if at all possible.... this should be the absolute very last resort. !

If it helps, get some other family members involved by sitting down with both of you and to agree that your intentions are perfectly reasonable, she may see things in a different light once they side with your opinion. !