"The foundation of the firm is confidence."

Matthew C. Deal and Mark O. Sikes are the principals and owners of Deal Sikes. Our experience, track record and proven ability to deliver confidence for clients serves as the foundation of the firm. We are supported by a growing number of some of the most intelligent and dedicated professionals in the industry.

As a team, we are all committed to pursuing excellence in the smallest details of the work we do for our clients.

Our Team

Matthew C. Deal, CRE

In 2009, Matthew Deal co-founded the firm with Mark Sikes. Throughout his more than thirty year career, Mr. Deal has appraised and provided counseling solutions concerning virtually every property type. He has been qualified as an expert witness in county, district and federal courts, and he has testified in numerous forums including the state legislature, depositions, jury and bench trials, arbitrations and special commissioners hearings. He led the acquisition counseling and appraisal review team for Houston METRO’s expansion of light rail throughout Greater Houston, and he managed Uptown Houston’s acquisition program for the widening of Post Oak Boulevard and other roadways. Mr. Deal is a Texas state certified real estate appraiser and is a member of the Counselors of Real Estate.

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Mark O. Sikes

Mark Sikes co-founded the firm in 2009 with Matthew Deal. Over his 25 year career Mr. Sikes has provided valuation and counseling services for almost all property types. He has qualified as an expert witness and provided testimony in federal and state courts and municipal and administrative proceedings including depositions, arbitrations, mediations, special commissioners hearings, jury trials and bench trials. He has provided counsel and testified for public improvement projects including roadway widenings, pipelines, electrical transmission lines, detention and drainage facilities, sports stadiums and water canals. Mr. Sikes is a Texas state certified real estate appraiser, Texas licensed real estate broker and Texas licensed property tax consultant.

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Jackie Servaty

Senior Analyst

Jackie joined Deal Sikes in 2011 and currently serves as a Senior Analyst. She holds a Bachelor of Business Administration in Finance from Texas A&M University and is a Texas Certified General Real Estate Appraiser. Jackie is a Houston native and a civic leader in her local community.

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Andrew Stone

Senior Analyst

Andrew joined Deal Sikes in 2014 and currently serves as a Senior Analyst. He is a Texas Certified General Real Estate Appraiser and TexAndrew Stoneas Licensed Real Estate Salesperson. Originally from Corpus Christi, Texas, Andrew is a graduate of the University of Texas at Austin.

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Matt Brollier

Senior Analyst

Prior to joining Deal Sikes in July 2018, Matt served the City of Houston for over 8 years, including as Chief of Staff and Chief of Operations for two City Council Members. Originally from Houston, Matt is a graduate of the University of Texas at Austin.

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Reese Smith

Analyst

Prior to joining Deal Sikes in July 2019, Reese worked for The Gustafon Group as a Real Estate Information Coordinator. Reese is a graduate of the University of Houston – Clear Lake.

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Nick Slaughter

Analyst

Prior to joining Deal Sikes in March of 2021, Nick worked as a Tax Analyst for an industrial tax consulting firm. Nick is a graduate of the University of Houston and was a member of the Houston Cougar Baseball Team.

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Zack Koso

Analyst

Zack joined Deal Sikes in 2023 and currently serves as an analyst. Originally from Omaha, Nebraska Zack holds a Bachelor of Science degree in Finance from the University of Nebraska–Lincoln. Prior to joining Deal Sikes Zack worked as an Investment Analyst.

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Anne Claire Gsell

Analyst

Anne Claire joined Deal Sikes in 2023 as an analyst. Before she was employed by a Houston based real estate brokerage firm. She has a bachelor’s degree in Communications and Real Estate from The University of Denver.

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Kira Burtt

Production Coordinator

Kira joined Deal Sikes in July 2018 and has since been promoted as our Production Coordinator. She is responsible for creating report exhibits and assisting in administrative duties.  Kira is excited to be newly married and she is a proud native Houstonian.

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Sara DiGiovanni

Administrative Coordinator

Sara joined Deal Sikes in 2022 and currently serves as our Administrative Coordinator. Originally from Queens, New York, Sara is a graduate of The State University of New York College at Cortland with a Bachelor of Science in Business Economics and a minor in Computer Applications.

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Louis Guzick

Controller

Louis joined Deal Sikes in May 2009 as its Controller. He has a BBA in Accounting and a Master of Science in Accountancy both from the University of Houston. He is responsible for the accounting and tax functions of Deal Sikes. Louis enjoys fishing, golf and playing with his grandson.

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