As per the information mentioned in the present query, makes it clear that you are ready to give away the share in the movable properties and immovable properties.
Let me tell you the exact provision as well as the law with respect to the property which has come through any family business also.
As the business must had been established by your father and then now brothers saying as it has come to them by way of inheritance or may not be saying the same, but you will do not have to mention this thing in your Will.
You have share in it, there is no doubt in it after the amendment in the law of inheritance wherein rights have been given to the girl also in father’s property.
But, till the time you do not get it you can’t simply donate it even for the the noble cause like the present one.
And I would advice you to fight the case, and you need not to be there all the time, she can be represented by her lawyer also.
Though right now, you can make a deed stating for the future contingency if property comes to you, same will go for the noble cause.