He was not married or had any children he has two brother and two sister that is still living. The lnsurance company took me to mail the check back to them. What do I needed to do about this .
Your description is insufficient to explain the circumstances, and revealing your beliefs about the specific facts on an open, Internet forum is a huge mistake. You need to schedule a consult with a lawyer in the jurisdiction where your brother resided when he passed. You'll need to explain what your brother owned when he died and whether he left a Will. You'll need to explain whether your brother was named as the beneficiary of the Will or of a life insurance policy. If we are talking about a life insurance policy, you'll need to have a copy of the policy or at least have its "declarations" page. If I read into your brief description and assume that your mother post-deceased your brother with no assets other than an insurance policy, and that policy named your brother as a beneficiary with no contingent beneficiaries, then you probably need to open an estate for your brother so you can collect and distribute the proceeds from your mother's life insurance policy. If the size of your brother's estate is small and he died in 2003 while a resident of DC, you might be able to limit the fees by retaining counsel just as an attorney-advisor teaching you how to open the estate yourself, since lawyers are not required to petition for fees for decedents who passed after 1995. You will probably need to find funds to retain this lawyer, since he won't be paid by the estate or the insurance carrier, but you can be reimbursed for it.
Reading an answer on the Internet does not create an attorney-client relationship. You are represented by me when we have both signed a retainer agreement (on paper or electronically) and some money has changed hands. Usually, you will have been asked specific questions about your situation and all potential conflicts of interest will have been resolved. Until then, you have no more right to rely on this answer than if you read it in a novel.
Years licensed, work experience, educationLegal community recognition
Peer endorsements, associations, awardsLegal thought leadership
Publications, speaking engagementsDiscipline