William E. Sider

William E. Sider is partner in the Southfield office of Jaffe Raitt Heuer & Weiss. He is a member of the Firm's Taxation Practice Group.

Bill's expertise is in tax structuring and implementation of creative and sophisticated transactions on behalf of the Firm's varied client base including private equity firms, venture capitalists, REITs, private foundations and entrepreneurs.  He is particularly experienced in handling tax issues arising from merger and acquisition transactions, debt restructurings, real estate ventures and wealth transfer strategies.   Bill has written and lectured extensively on a variety of tax topics including equity incentives, real estate workouts, limited liability companies, REITs and angel investment strategies.

Bill also served as the Firm's CEO for 6 years and is a member of the Firm's Board of Directors.

Bill earned his Bachelor's degree with high distinction from the University of Michigan and is a graduate of the University of Michigan Law School. He also earned his LL.M in Taxation from New York University School of Law.

Bar Admissions

  • Michigan
  • Utah
  • U.S. Federal Courts

Published Works

  • "Capital Gains Exclusion for Qualified Small Business Stock Made Permanent," Co-Author, SRR Journal (Spring, 2016).
  • "Profits Interests as Equity Incentives" Co-Author, SRR Journal (2007)
  • "529 Plans may Benefit Americans Living in Israel", Quest Magazine (Israel), March, 2007
  • "Entity Selection: A Case of Alphabet Soup," Transaction Trends, 1st Quarter, Winter, 1999
  • "Planning Opportunities Involving Entity Conversion," ICLE Connection, Volume 1, Issue 7, April 1998
  • "Michigan LLC Update," MACPA Newsletter, Vol. 17, No. 2, September, 1997
  • "Recent Letter Rulings Help Clarify the Tenant Services REITs May Provide," Journal of Real Estate Taxation, Vol. 24, No. 4, Summer, 1997
  • "Final Check-the-Box Regulations: Ready, Set Go!," Journal of Limited Liability Companies, Vol. 3, Number 4, Spring, 1997
  • "Check the Box Proposed Regulations Make LLCs Even More Appealing," Journal of Limited Liability Companies, Vol. 3, Number 2, Fall, 1996
  • "Practitioners Eagerly Await the Check-the-Box Proposal," Michigan Tax Lawyer, Vol 21, Issue 4, 4th Quarter, 1995
  • "Partnership Taxation - What's Hot and What's Not," Michigan Bar Journal, Volume 74, No. 10, October, 1995
  • "Recent Developments in Taxation Law: Partnerships and LLCs," Institute of Continuing Legal Education, State of the Law Course Handbook, September, 1995
  • "Self Employment Tax Rules Exclude Some LLC Members," Taxation for Accountants, Volume 54, No. 3, March, 1995
  • "Practical Aspects of Converting Existing Entities into Limited Liability Companies," Michigan Bar Journal, Volume 74, No. 1, January, 1995
  • "IRS Announces Majority Interest Safe Harbor for Limited Liability Companies," Michigan Tax Lawyer, Vol. 20, Issue 3, 3rd Quarter, October, 1994
  • "Real Estate Workouts Aided by the 1993 Tax Act," Michigan Bar Journal, Volume 73, No. 3, March, 1994
  • "The Section 704(c) Proposed Regulations," Michigan Tax Lawyer, Vol. 19, Issue 4, 4th Quarter, 1993

Honors & Awards

  • Best Lawyers in America, 2014-2019
  • Best Lawyers in America, 2016 Lawyer of the Year - Tax Law
  • Michigan Super Lawyer, 2006-2017
  • dbusiness Top Lawyer, 2012-2019

Classes/Seminars Taught/Speaking Engagements

  • Speaker, Wealth Transfer for Real Estate Owners, Michigan State Bar, Real Property Law Section, Annual Summer Conference, 2011
  • Speaker, Material Tax Consequences of Real Estate Workouts, Michigan State Bar, Real Property Law section, Annual Summer Conference, 2010
  • Speaker, Tax Issues for Angel Investors, Great Lakes Angels, 2003
  • Speaker, Tax Considerations for Artists, Athletes and Entertainers, Advanced Entertainment Law Seminar, Institute of Continuing Legal Education, 2002
  • Speaker, Are REITs Right?, Michigan State Bar, Real Property Law Section, Annual Summer Conference, 1999
  • Speaker, Tax Tips, Traps and Benefits for the Modern Business, Michigan State Bar, Business Section, 11th Annual Business Law Seminar, 1999
  • Speaker, Current Tax Issues and Transactions Involving Real Estate, Institute of Continuing Legal Education, 1999
  • Speaker, How to Do a Deal with a REIT, University of Michigan Real Estate Forum, 1998
  • Speaker, Entity Conversions and Cross Entity Mergers, Institute of Continuing Legal Education, 1998
  • Speaker, Choice of Entity, Institute of Continuing Legal Education, 1997
  • Speaker, Practical Applications of LLCs, Institute of Management Accountants, 1996
  • Speaker, Drafting LLC Operating Agreements, Institute of Continuing Legal Education, 1996
  • Speaker, Entity Classification Under the Check the Box Regulations, 8th Annual Business Law Seminar, Michigan State Bar, Business Section, 1996
  • Speaker, LLC Update, Michigan State Bar, Taxation Section, Annual Meeting, 1994-1995
  • Adjunct Professor of Law, Taxation, Detroit College of Law, 1989-1993

Professional Associations & Memberships

  • State Bar of Michigan, Section of Taxation, 1986 - Present
  • State Bar of Michigan, Tax Section, 1994-1998 - Council Member
  • State Bar of Michigan, Taxation Section, 1994-1995 Chairperson, Partnership Committee
  • American Bar Association Taxation Section—Member

Civic & Cultural Involvement

  • Frankel Jewish Academy—Board of Directors, President
  • Camp Michigania, Camps Counsel, 2008-2011
  • Jewish Community Relations Counsel, 2005-2008

In the News