Sienna Management District
District Consultants
Attorney
Allen Boone Humphries Robinson LLP
3200 Southwest Freeway, Suite 2600, Houston, Texas 77027
(713) 860-6470
Auditor
McGrath & Co., PLLC
2950 North Loop West, Suite 810, Houston, Texas 77092
(713) 493-2620
Bookkeeper
Municipal Accounts & Consulting, L.P.
611 Longmire Road, Conroe, Texas 77304
(469) 444-8878
Collections Attorney
Mitchell & Duff, LLC
210 Main Street, Richmond, Texas 77469
(281) 341-1718
Delinquent Tax Attorney
Perdue, Brandon, Fielder, Collins & Mott
1235 North Loop West, Suite 600, Houston, Texas 77008
(713) 862-1860
Engineer
LJA Engineering, Inc.
3600 West Sam Houston Parkway South, Suite 600, Houston, Texas 77042
(713) 953-5200
Financial Advisor
Cedar Creek Municipal Advisors, LLC
4801 Woodway Drive, Suite 118-E, Houston, Texas 77056
(713) 600-7535
Insurance Agent
McDonald & Wessendorff Insurance
611-B Morton Street, Richmond, Texas 77469
(281) 633-3200
Investment Officer
Municipal Accounts & Consulting, L.P.
1281 Brittmoore Road, Houston, Texas 77043
(713) 366-3034
Landscape Architect
TBG Partners
1333 West Loop South, Suite 1450, Houston, Texas 77027
(713) 439-0027
MS4- Storm Water Pollutant Consultant
Storm Water Solutions, LLC
16110 Hollister Street, Houston, Texas 77066
(281) 587-5900
Operator
Si Environmental, LLC
6420 Reading Road, Rosenberg, Texas 77471
(832) 490-1570
Tax Assessor / Collector
Tax Tech, Inc.
12841 Capricorn Street, Stafford, Texas 77477
(281) 499-1223
Website / Communications
Off Cinco
23501 Cinco Ranch Boulevard, Suite H120-177, Katy, Texas 77494
Upcoming Meetings
Tuesday, September 15, 2026 at 1:00 PM
Suite 2400, Guadalupe Room
The Board meets the third Tuesday of each month at the offices of Allen Boone Humphries Robinson LLP, 3200 Southwest Freeway, 24th Floor, Guadalupe Room. Meetings generally begin at 1:00 p.m. and are open to the public.
The Board welcomes and encourages District residents to attend.