FILED AT&T Services, 17-0816 Inc. One AT&T Plaza 9:59 AM 12/19/2017 Heather New 208 S. Akard Street tex-21370404 SUPREME COURT OF TEXAS Assistant Vice President – Senior Legal Counsel Room 3151 BLAKE A. HAWTHORNE, CLERK Dallas, Texas 75202 T 214.757.3484 F 214.746.6449

December 19, 2017

Mr. Blake Hawthorne Clerk, Supreme Court of Texas P.O. Box 12248 Austin, Texas 78711

RE: Cause No. 17-0816 – RayMax Management, L.P., v. SBC Tower Holdings, LLC Dear Mr. Hawthorne: By this waiver letter, Respondent SBC Tower Holdings, LLC respectfully waives the filing of a response to the petition for review. It is Respondent’s understanding that the Court will not grant the petition without first requesting a response.

Sincerely, /s/ Heather B. New Heather B. New State Bar No. 24007642 AT&T SERVICES, INC. One AT&T Plaza S. Akard Street, Room 3151 Dallas, Texas 75202

CERTIFICATE OF SERVICE I certify that, on December 19, 2017, I served a copy of this waiver on the following: Scott P. Stolley Perry J. Cockerell STOLLEY LAW, P.C. ADKERSON, HAUDER & BEZNEY, P.C.

4810 Purdue Avenue 1700 Pacific Avenue, Suite 4450 Dallas, Texas 75209 Dallas, Texas 75201 Via Email: [email protected] Via Email: [email protected]

/s/ Heather B. New Heather B. New