Mr. Marshall has successfully pursued litigation in dozens of Texas Counties including actual courtroom experience in the state district courts of Collin, Chambers, Dallas, Denton, Ellis, Kaufman, Harris, Tarrant, Parker, Potter, Navarro and Travis Counties, and the U.S. District Courts for the Nothern, Eastern, and Western Districts as well as appeals to the Fifth, Second and Twelfth Circuits of Texas, the Texas Supreme Court, the United States Court of Appeals for the Fifth Circuit, and the United States Supreme Court. When appropriate, the Firm will also coordinate its efforts with local counsel in a manner to best server client interests.
In Re Porter, 126 S.W.3d 708 (Tex.App.--Dallas, pet. denied). (successful mandamus proceeding for recall election on behalf of citizens)

City of Heath v. Duncan, No. 05-03-00434-CV,_S.W.3d_ (Tex.App.--Dallas, September 23, 2004, pet. pending) (successful establishment of compensability of deed restrictions first such holding in Texas)

Sears Roebuck & Co. v. Dallas Central Appraisal District, 53 S.W.3d 382, 389-90 (Tex. App.--Dallas 2000, pet. denied) (successful defense of holding that book value of inventory can be equivalent to its market value)

Dallas Cent. Appraisal Dist. v. Brown, 19 S.W.3d 878, 880 (Tex. App.--Dallas 2000, no pet.) (successful defense of appraisal district position on exemptions procedures)
Jason Marshall has practiced in the areas of property tax and local government law his entire career. At The Marshall Firm, he concentrates on the representation of property owners and developers in property tax and land use matters.

Mr. Marshall is from Dallas, and attended undergraduate school at Texas A&M University, where he graduated in 1991 with honors, receiving a B.S. in economics. He received his law degree from the University of Texas School of Law in 1995. He is a certified mediator, and is licensed to practice in all Texas Courts as well as the U.S. District Courts for Northern, Western and Eastern Districts, and the Fifth Circuit Court of Appeals. Jason was formerly a partner at the firm of Nichols, Jackson, Dillard, Hager & Smith, LLP, where he represented a number of municipalities and tax appraisal districts, and is a former shareholder at Winstead Sechrest and Minick where he represented property owners and developers in all aspects of property tax and local government litigation.

Jason Marshall is a regular speaker on property tax and land use issues and has addressed conventions held by the State Bar of Texas, Texas Association of Assessing Officers, Texas Association of Appraisal Districts, Texas Association of Property Tax Professionals, Texas A&M University, The Federal Bar Association, Lorman Seminars, the Dallas Bar Association and the Texas Municipal League. He is past President of the Texas Association of Assessing Officers, North Texas Chapter, and is Immediate Past-President of the Dallas Federal Bar Association.