If something doesn’t make sense to you then there are two possibilities:
1. Someone can explain it to you so it does make sense.
2. It doesn’t make sense.
If it doesn’t make sense then someone is up to something.
My question is:
If. after the money is spent on the house there is a dollar each for you and your brother why would your aunt be trying to get you to give up that small amount of money? A big family fight over 2 dollars? Unlikely.
I think that because the house is in good renting condition there is quite a bit of money left and your aunt wants this money for herself even though it isn’t her money. I don’t suppose she has told you exactly how much money you will be signing away?
I’m a bit concerned about your elder brother’s involvement in this. It does rather imply that he is hiding something. His reasoning doesn’t make sense to me either.
Your grandfather expressed his wishes clearly in his will and his executors must abide by his wishes. If they refuse to do so then they are breaking the law.
I would write to the executors of the will (even if you are related to them) to say that you have been put under considerable pressure to sign away an unknown amount of money left to you in your grandfather’s will. Then state that you have no intention of submitting to this pressure and that this is a matter that is not up for further discussion. Say that you will be keeping a copy of this letter/email. Ask the executors to reply in writing confirming that no further pressure will be put on you.
I strongly suggest that your other brother does the same.
This will provide an electronic “paper trail” should there be any difficulty with relatives in the future.
Is all this worth it considering the family drama? Yes it is. By giving in you might make things temporarily better but all your relatives need to do to control you in the future is to be unpleasant again. (I do wonder whether they are putting particular pressure on you because they see you as the one most likely to give in. This tends to happen particularly if you are a nice person who wants to please people.) And imagine how you will feel in future about your aunt if you know she has succeeded in defrauding you.
If you stand up to them you will take a lot of flak in the short term but you will eventually be respected as an adult. The manipulative aunt will hit on someone else in future. If you and your other brother stick together on this it will be a lot easier because you can support one another.
I think that you can also get your husband involved. If your relatives bully you then he can step in and call their bad behaviour out. You don’t have to face everyone alone.
Once you receive the money you can decide what to do with it. You could save or spend it yourself, you could give it all to charity, you could even give/loan some to your relatives (although again don’t be pressurised into this). The point is that your grandfather left the money to you and you are allowed to choose what you wish to do with it, not them.
Don’t give in to the pressure.