Hi! My name is XXXXX XXXXX I look forward to helping you!
Unfortunately, wills are typically not filed or recorded anywhere. The best bet is to determine the attorney or law firm who drafted the will and contact them. It's likely they would at least have a fully executed copy and typically would keep the original for safekeeping. If you can't find the will, the presumption is that it was destroyed by the decedent. But, Section 85 of Texas Probate Code does allow you to overcome this presumption if you can prove: i) that it was not revoked, ii) the cause of the written will's non-production and that such cause satisfies the court that the will cannot be produced through reasonable diligence, and iii) the contents of the will must be substantially proved by a credible witness who has read the will, heard it read, or can identify a copy of the will. If you can prove these things, the court will admit the lost will to probate.
If not, your grandmother would be deemed to have died intestate
and the Texas intestate succession laws would apply. Under those, with no surviving spouse, your grandmother's children would inherit equally and if any of the children were deceased (as is your situation with your mother), then if the deceased children had children, then the children of the deceased child would inherit the deceased child's share.
Thank you so much for allowing me to help you with your questions. I have done my best to provide information which fully addresses your question. If have any follow up questions, please ask! If I have fully answered your question(s) to your satisfaction, I would appreciate you rating my service as OK, Good or Excellent (hopefully Good or Excellent). I thank you in advance for taking the time to provide me a positive rating!