Legal Question in Wills and Trusts in Texas

You can certainly try to get them to sign "something" but they are probably not willing to give up there inheritance. If that is what you are trying to say, Texas has a very strict time limit for disclaiming property that would be due to someone because of someone elses death. If your brother is going to disclaim that does not necessarily mean that the property would go to you.

You have 9 months to do a transfer of interest. You can have an attorney draft the document in such a way that their share will go to you, but they must agree to it first. Also if your father did not leave a will naming you as executrix, you will need them to sign a waiver of notice, so that you may be an independent administrator.

Keep in mind attorney's fees are reimbursed to you from the value of the estate.