William E. "Bill" Sigler
About William E. Sigler
William E. Sigler is a lawyer based in Southfield, MI and has been recognized in The Best Lawyers in America® since 2025. William E. Sigler is recognized in the following practice areas:
- Southfield, Michigan
- Corporate Law
- Employee Benefits (ERISA) Law
- Real Estate Law
Current Firm: Maddin, Hauser, Roth & Heller PC
Education: University of Detroit Mercy, J.D., graduated 1983
Location: Southfield, MI
It takes just a few minutes to optimize your profile for clients looking to engage and lawyers who are ready to refer.
Activate your profile and highlight why your peers recognized in Best Lawyers today.
Nearby Lawyers
Lawrence (Larry) J. Buckfire is the managing partner and lead trial attorney at Buckfire & Buckfire, P.C. The Michigan personal injury law firm has six attorneys who specialize in serious injury, accident, and medical malpractice cases. The firm represents clients throughout the State of Michigan, and has offices in both Southfield and Ann Arbor. Lawrence earned his undergraduate degree in economics from the University of Michigan in 1986 and his juris doctor degree from Wayne State Unive...
Mark L. Kowalsky is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Securities. Mark L., who practices law in Southfield, Michigan, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Mark L. is held by other top lawyers in the same geographic and legal practice area.
Mr. Amburn concentrates his practice on intellectual property protection and litigation. He prepares and prosecutes patent and trademark applications, drafts intellectual property opinions and agreements, and counsels clients in obtaining and enforcing intellectual property rights. He works on a wide variety of technologies including mechanical, software, and business methods. Mr. Amburn has over fourteen years of litigation experience including first chair jury trial, mediation, arbitration,...
Kathleen M. Gatti is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management. Kathleen M., who practices law in Detroit, Michigan, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Kathleen M. is held by other top lawyers in the same geographic and legal practice area.
David M. Moss is a top attorney recognized by Best Lawyers in the practice area(s) of Personal Injury Litigation - Plaintiffs. David M., who practices law in Southfield, Michigan, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which David M. is held by other top lawyers in the same geographic and legal practice area.
Ethan R. Holtz is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation and Litigation - Construction. Ethan R., who practices law in Southfield, Michigan, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Ethan R. is held by other top lawyers in the same geographic and legal practice area.
Phil DeRosier has nearly 20 years’ experience representing industry-leading corporations, banks, insurance companies, and individuals in the Michigan Supreme Court, Michigan Court of Appeals, and U.S. Courts of Appeals. Phil has briefed and argued a wide variety of appeals, ranging from commercial contracts to insurance to business torts. He also devotes a significant part of his practice to briefing dispositive motions and working with trial counsel on pre- and post-trial motions, jury...
Judith Greenstone Miller is a top attorney recognized by Best Lawyers in the practice area(s) of Bankruptcy and Creditor Debtor Rights / Insolvency and Reorganization Law. Judith Greenstone, who practices law in Southfield, Michigan, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Judith Greenstone is held by other top lawyers in the same geographic and legal practice area.
Christopher A. Cornwall focuses his practice on complex Commercial and Business Litigation and Construction law. With a depth of experience in litigation, Mr. Cornwall represents corporations in business disputes, including breach of contract, tortious interference, fraud, non-compete provisions, shareholder claims and buy-sell agreements. He counsels business and private owners in real estate matters, including adverse possession, zoning issues, restrictive covenants, variances, boundary dis...
Ms. Machnik represents financial institutions in Canada and the United States in cross-border transactions, acting on behalf of agents and lenders in multi-jurisdictional asset-based, acquisition, commercial, and equipment finance transactions involving public and private debtors. She also advises financial institutions seeking to expand their operations across the border on applicable laws, regulations, and market dynamics. Ms. Machnik holds law degrees from the United States and Canada and ...
Explore and Learn
The Family Law Loophole That Lets Sex Offenders Parent Kids
by Bryan Driscoll
Is the state's surrogacy framework putting children at risk?
Best Lawyers 2026: Discover the Honorees in Brazil, Mexico, Portugal, South Africa and Spain
by Jamilla Tabbara
A growing international network of recognized legal professionals.
Unenforceable HOA Rules: What Homeowners Can Do About Illegal HOA Actions
by Bryan Driscoll
Not every HOA rule is legal. Learn how to recognize and fight unenforceable HOA rules that overstep the law.
Holiday Pay Explained: Federal Rules and Employer Policies
by Bryan Driscoll
Understand how paid holidays work, when employers must follow their policies and when legal guidance may be necessary.
Reddit’s Lawsuit Could Change How Much AI Knows About You
by Justin Smulison
Big AI is battling for its future—your data’s at stake.
US Tariff Uncertainty Throws Canada Into Legal Purgatory
by Bryan Driscoll
The message is clear: There is no returning to pre-2025 normalcy.
Alimony Explained: Who Qualifies, How It Works and What to Expect
by Bryan Driscoll
A practical guide to understanding alimony, from eligibility to enforcement, for anyone navigating divorce
Can a Green Card Be Revoked?
by Bryan Driscoll
Revocation requires a legal basis, notice and the chance to respond before status can be taken away.