Douglas D. Hahn


Areas of Practice

Real Estate, Business & Other Transactions Tax Wills, Trusts, and Estate Plans


Douglas D. HahnSince 1981, I have been serving clients in the most important legal matters they encounter during their lives. In estate planning and probate, I assist clients in the planning and implementation of transferring their assets to their surviving family members, or other recipients, in a tax-efficient way. In the field of business law, I have assisted clients in establishing, purchasing and selling businesses, drafting and reviewing contracts and resolving business disputes. I conduct real estate transactions for both individuals and businesses of all types. I am a Shareholder in Menn Law Firm, Ltd. and was its managing partner from 2006 to 2014. I have spent my entire professional career with the firm.

“Since beginning my practice here at the Menn Law Firm in 1981, I have strived to give my clients the best legal service possible.”


  • Contracts
  • Corporate and Limited Liability Company Law
  • Entity Formation and Organizational Planning
  • Leases
  • Marital Property Agreements
  • Powers of Attorney and Living Wills
  • Probate Administration and Trust Settlement
  • Probate Avoidance
  • Representing Clients in Will Contests and Other Estate or Trust Litigation
  • Special Needs Planning
  • Transactions
  • Trusts
  • Wills


Professional Organizations/Court Admissions

  • Fox Valley Estate Planning Council
  • State of Wisconsin
  • U.S. District Courts for Eastern and Western Districts of Wisconsin
  • U.S. Tax Court
  • American Bar Association
  • State Bar of Wisconsin

Activities & Achievements

Boards, Organizations, Clubs, Etc. (past and present)

  • Appleton Northside Kiwanis Club
  • Appleton Baseball Club, Inc. (WI Timber Rattlers)
  • Neighborhood State Bank, f/k/a State Bank of Nichols
  • Midwest League of Professional Baseball
  • Appleton Housing Authority
  • Appleton West Rotary Club
  • Fox Valley Literacy Coalition
  • Greenleaf Bank, Board of Directors
  • Seymour Lions Club
  • Community Foundation of the Fox Valley Region, Inc.
  • St. Francis Xavier Catholic School System Foundation, Inc.
  • Riverview Country Club


“Not only was Doug knowledgeable and had pertinent insights to share, he really got involved, which was welcome and unexpected. He went beyond legal help; taking a personal interest.”
— John Gillespie, Client

Menn Law Watermark

Committed to Doing What is Right

To learn more about how we can help you or your organization, contact us today!
Contact Us