lookybooky. First I know it's a lot too late but the nature of the subject makes me want to say I am so sorry you have lost your Dad, he couldn't have been all that old.
I've been following, sorry to not speak earlier. Sounds to me as if OffToBedhampton has the legal aspect nailed but no doubt should it need to be addressed you would get advice.
I just wanted to say how sorry I am that you are suffering like this. I am very angry with the posters who say rude things to you so please ignore them. I feel I can judge them (says she) because I am actually a tad older than your mum!! (Please don't throw me off mumsnet.) I am a widow too, was widowed at just 42.
I think your mum is ghastly! I don't make any excuses for her at all! She is manipulative, selfish and acts as if she is entitled. She has absolutely no right to criticise your parenting and she is completely in the wrong in disparaging you in your home especially if your children can hear.
I don't understand why no one has said this but as I see it, your mother gave her two children gifts of money. One had the money outright; £70k. the other had the money so long as she built a couple of rooms on her (the daughter's) current home and let the mother live in them paying her contribution of the house bills. This sum was £80k. That's all known facts.
But my interpretation, as a mum whose husband died, and as a daughter whose dad died, is this: The Granny gave each child £70k. She also gave an extra £10k to the child she went to live with and made to spend her money on extending the house etc. So you got an extra £10k gift for having your mother live with you, rent free, and for being made to build the extension so she could live in it, and you not have a choice about what to do with your £70k gift.
If she says to you "give me back my money" say that you will have to deduct the appropriate rent from the £10K she gave you first. If she says it was £80K, tell her she only gets the rest if your brother coughs up his too and you need proof that he has!
I have met people like your mother. I am her generation and I was widowed when my children were at school. You have to stand up to them. With a firm and calm voice, tell her the facts. A gift cannot be taken back. House rules say that the mother in this house (you) does not get criticised for her parenting style. That if she uses the big kitchen she cleans the big kitchen. That the family side of the home is your private residence and your family need time together without interruptions on a regular basis.
As for me - I would not go and live with my children under any circumstances. The nearest I would consider would be an entirely self contained and independent house nearby. Under the same roof, I would drive them mad and they would drive me mad. Visits to each other and babysitting would be lovely. When I am too disabled to cope I will take my chances with the Council and Health services that are on offer. I am never going to ask my children to look after me! I want them to remember me with some kind of happiness!
The next issue: £150 pcm for "expenses." She's having a laugh! Absolutely not enough! Go through your Direct Debits and chop them (those that are appropriate to the House) into 3 and tell her that this year's household bills, electric, insurance, council charge, is £xxx amount! I live alone and my Council Charge alone is over £100, a quick reckoning gets me up to £437.27pcm for my DDs for the house bills and car insurance not tax or petrol and I think I pay my house insurance annually! Don't leave anything out! If your bills are £2k pcm which I expect they are with 3 adults plus children, then she has to pay at least £450, possibly £500+. I mean, if she is on the State Pension alone (and I expect she gets a pension from your Dad's pension scheme as well) she is making a mint living with you! (Actually I need a bit of cash... When can I come and stay? I actually like children! My first job was teaching....)
Tell her about not paying appropriate rent and that she is damned lucky not to have this overhead to pay. As it is she does not pay enough to contribute towards household maintenance....
Phew! I am totally in support of you my love. Your mum is a taker not a giver. Her "gift" had strings attached. But it was a gift! So it is yours! She has no rights to it. Your house is your home and she behaves according to your house rules. As for Foxes! What utter rot! How could your child be less at risk from any fox problem if you were there in the garden? What's stopping her going out to play with he DGD? Oh well... she won't change. Apparently we get worse as we get older.
And that £80k? Your Dear Dad left that to you. Believe me, when he died, for which I am so sorry, he left plenty for your mother, in money and assets.
Be strong my love, you did a kind thing by not wanting her to be on her own. It works both ways though. If she won't make a bit of effort then you can't force her. Don't let her spoil your family life. That is extremely precious. Put your husband and children first. I am older than your mum and we've had most of our lives. OK we hope for more. But yours is extremely important. You are laying the foundations for the happiness of your children's lives. You deserve to enjoy a healthy and wonderful family life. Put that first. Lots of love, Elle x 