​Keystone Property Tax Services provides consulting and representation in property tax matters. The firm assists clients in rendering Texas based assets and obtaining taxable values below the valuations assessed by appraisal districts. Most Texas appraisal districts utilize mass appraisal methods to determine taxable values. Keystone, however, analyzes client property on an individual basis. By using proven methods and accepted forms of documentation, Keystone has successfully represented property owners.

Keystone Property Tax Services provides personalized attention to clients. Mr. Lee Dudinsky is the principal of the firm. He has over twenty years experience in the area of property tax representation. He is a registered Texas Senior Property Tax Consultant (#00002004).

Our specialties



Keystone provides property tax representation to commercial property owners to increase the performance of their properties by reducing property taxes. We represent Shopping Centers, Breweries, Transportation Companies, Hotels, Resorts, Condominiums, Office Buildings, Industrial Facilities and many more. 



Keystone provides residential property tax representation to homeowners across Texas. We work with our clients to develop a customized appeal to demonstrate the facts needed to minimize the value of your property and maximize tax savings.  We personally review the evidence for each client in-house to develop the best strategy to aggressively advocate for a positive outcome for all clients.  

Residential Property Tax Representation Agreement



Our residential services are generally performed according to a fixed-fee structure. ​To learn more about our residential services or to retain Keystone to represent your residential property, click the download button below. For commercial properties, please contact us through the "Send Message" button at the bottom of the page or call our office to speak with a Keystone representative.

Our Team

Lee Dudinsky, Founder and President

Lee Dudinsky is the owner and president of Keystone Property Tax Services. He is a graduate of Ohio State University. Mr. Dudinsky holds the highest level of property tax registration in Texas, Senior Property Tax Consultant (registration #2004). He is a charter member (1988) of the Texas Association of Property Tax Professionals.  

With more than twenty years of property tax experience, Mr. Dudinsky has produced millions of dollars in tax savings for his clients. Mr. Dudinsky is an elder in the Presbyterian Church. 

For over a decade, he has managed and directed community assistance programs. These programs include Meals-On-Wheels (hot meals for homebound senior) and Project Angle Tree (support for children who have one or both parents in prison). Mr. Dudinsky is an Eagle Scout, former Scout troop leader and Eagle Scout review board member. He is an active runner who has participated in the Boston Marathon and Senior Olympics. 

Yolanda Griffin, Property Tax Consultant


Yolanda Griffin is a licensed Texas Property Tax Consultant (registration #10465) and a member of the Texas Association of Property Tax Professionals. She has extensive property tax experience preparing renditions, researching valuations and building professional protest cases. 

Ms. Griffin has been instrumental in the production of large valuation reductions.  She is a native Texan and actively involved in organizations that provide support to under-served members of the community.

Lynn Dudinsky, Property Tax Consultant


Lynn Dudinsky is a licensed Texas Property Tax Consultant (registration #11675). He has extensive experience preparing renditions, researching valuation and building professional protest cases.

He is a graduate of Second Baptist School and attended Millsaps College for his undergraduate studies. Lynn continued his education at Texas A&M where he pursued his master’s degree in bio-chemical genetics before attending Santa Clara University School of Law where he received his J.D, with a specialization in intellectual property law. Following law school, Lynn has worked with inventors, small businesses, and large enterprises in the valuation of their intangible assets and is the Vice President of Foresight Valuation Group. Lynn spent his high school summers at Baker’s Ribs, now Roegels, learning all he could about the art of BBQ and worked at NASA’s Johnson Space Center prior to attending graduate school. 

Contact Us

Keystone Property Tax Services

701 N Post Oak Rd, Houston, Texas 77024, United States

(713) 777-9535

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