My mother is having a partion deed from her mother's property. Her parents are no more.
We are three for my parents (Mingyself (son), elder sister and younger sister). My mother said she will sell her partioned property later (when she feels old enough) and share the amount with 3 of us. My elder sister is planning to buy a property in her area and she needs some money for that. But my mother is not ready to sell the property and share the money now.
Understading my elder sister's situation, I am ready to give her the money that she needs (equalent to current price for her share on my mother property) on behalf of her future share that she will be receiving from my mother.
Now, I have to make sure she don't come back and make problems when my mother sells her property or I & my younger sister sell my mother property in her absense (thinking wide).
Is is ok if I write this matter on a stamp paper and get my elder sister's singnature ?. The property is not big though.
Or any other suggestion to play this safe and avoid future problems ?
Thank you in advance