Lon Musslewhite's practice encompasses a broad range of tax law issues with an emphasis on general income tax matters, exempt organizations, and trusts and estates. Mr. Musslewhite has worked extensively on income tax matters involving C and S corporations, general and limited partnerships, limited liability companies and nonqualified compensation issues. In the exempt organization area, he has created private foundations, public charities and social welfare funds, helped them obtain tax exempt status and worked with their managers to resolve difficult tax and administrative issues. His work in the trusts and estates area has regularly included disputes between fiduciaries and beneficiaries, will contests, probate and trust administration. Aided by his prior experience as a CPA and IRS Revenue Agent, Mr. Musslewhite has also been involved with tax controversy work, successfully handling IRS examinations, appeals, and ruling requests involving individuals, for-profit entities and charitable organizations, and accounting issues.

Mr. Musslewhite is a member of the ABA Tax Section's Exempt Organizations Committee and Estate and Gift Taxes Committee, the ABA's Real Property, Probate and Trust Law Committee, the National Capital Gift Planning Council and the District of Columbia Estate Planning Council. From 1999 to 2004, Mr. Musslewhite served as co-chair of the ABA Tax Section Estate and Gift Taxes Committee's Subcommittee on Employee Benefit Plans. From 1995 to 1998, he was chair of the Estate and Gift Taxes Committee's Task Force on Simplification.

Mr. Musslewhite joined Williams & Connolly LLP in 1989 and has been a partner since 1995.