Should I halve my inheritance with my sister?

[Loluk]

Hi all,

I'm in a bit of a situation and I'd like to know what your guys' opinion is on this. Because I'm genuinely torn in two.

So, for context my mother passed away 5 years ago. In my grandmother's will she was left half of the house as well as my uncle. However, it states in the will that if she (my mom) passes away before my grandmother it will automatically go to her children - my sister and I.

My grandmother was very vocal about this, hence us knowing about it.
I took over caring for my nan when my mom passed away, for the past 5 years. My sister has seen her maybe once or twice within these 5 years. My grandmother spoke to me and said she wanted to change her will so that my uncle gets half of the house and I get the other half. She wanted to cut my sister out as I'd done so much for her and my sister hadn't seen her for years.
I of course said this was a bad idea and although I get the sentiment behind it (she is a beautiful lady), it should of been my mom's money, so in turn should be both my sisters and I's money.

She went with my uncle to change the will anyway. I have told my sister as I don't want there to be any secrets between us. She obviously was not happy and refuses to see my grandmother at all now.

My dad said when I receive the money that I must give my sister half anyway as it would be majorly unfair. I said I would. But I felt pressured into saying that but not really knowing how I truly feel.
I'm not unkind but my sister is in her 30s and still living at my dad's, rent free, bill free etc. Whereas I am a homeowner who is very much struggling. The money would help me massively and would help us get back on track. But also I'm aware it's family money so it should be split between my sister and I?

Some people I've spoken to are saying, it's your grandmother's money, she can do what she wants with it. Some are saying I would be selfish to not share with my sister.

What do you guys think?

meant to set this up as a separate post!😮

This is really sensible.

Just split it with your sister. My mum died before her mum (my Grandma) when my Gramdma passed away 15 years later the share of her estate which would have gone to my mum, came to me and my siblings and was shared equally. By that point, only one of us had contact with her. It would have entered her head to change it, and not would any of us siblings kept it and it shared it equally.
I think it’s wrong and decisive of your nan to tell you she’s going to cut your sister out.
I think you want the money too because you are justify why you should have it (caring for Nan, being closer to her, having a mortgage etc) Be careful, you are in danger of wrecking your relationship with your sister and your dad.