Brian practices in the areas of estate planning, taxation, trusts and estates, wills, probate, guardianship and conservatorship, corporate and charitable organizations. His representative clients include individuals and closely held businesses. He represents clients in tax controversies before the Internal Revenue Service, the Kansas Department of Revenue and in the federal and state courts.

He is admitted to practice in the U.S. District Court for the District of Kansas, the U.S. Tax Court and the state courts of Kansas and Oklahoma.

He is listed in The Best Lawyers in America for Wichita, KS, 2018 in the practice areas of Elder Law, Tax Law and Trusts and Estates. He has also been selected as a Kansas Super Lawyer 2012 Rising Star in the areas of Estate Planning and Probate. Brian lectures on tax and related topics to professional and various other organizations.