Before becoming one of the founding members of what is now Hanis Irvine Prothero, PLLC in 2003, Dennis previously operated his own independent private practice. He has also worked for Foster Pepper & Shefelman and with Smith & Zuccarini, and has served as General Counsel for KMS Financial Services.

Dennis’ practice focuses on business and financial transactions and planning for their tax consequences. He assists clients on a wide variety of areas including: formation of entities and joint ventures; negotiation of agreements and preparation of contracts involving investors, management and employees; resolution of corporate governance issues; private placement of securities and commercial loans; expansion through franchising; transfer and license of technology; merger, acquisition, reorganization or dissolution of companies; asset protection strategies; and sophisticated estate planning for individuals and closely held businesses. Among Dennis’ clients are professionals and firms involved in health care, engineering, financial services, real estate, construction, manufacturing and fabrication, automotive and aerospace, machinery and equipment, entertainment, software, food and restaurant industries.

Dennis fills his schedule with membership and attendance with several professional organizations. Some of these organizations include: the Attorney/CPA Tax Clinic, the Society of Financial Service Professionals, the Northwest Family Business Advisors, the Washington Society of Certified Public Accountants, and various sections of the Washington State Bar Association. Dennis is Vice President and a charter member of the Estate Planning Council for South King County. He also has been involved with the MIT Enterprise Forum, the Northwest Entrepreneur Network, the Rainier Symphony Orchestra, the Covington Historical Society, and the Asian-Pacific Roundtable. Dennis currently serves on the board of directors for the Rotary Club of Kent.

 

As chairman of the International Committee for the Washington Society of Certified Public Accountants, Dennis has moderated the successful annual International Tax Conference. He has spoken on Advanced Tax Issues for Limited Liability Companies for the National Business Institute.

In addition to his participation in all of these groups, Dennis has several hobbies that he enjoys. He performs with musical groups and organizations, as he is especially talented at playing the drums and various other percussion instruments. Dennis cultivates and harvests a renowned garden, orchard and vineyard. He also maintains his collection of classic automobiles and motorcycles. As a result of his personal interest in screenwriting, filmmaking and sound recording, Dennis has established an independent film and video production company with plans to complete and distribute feature length motion pictures, television series and new media properties.