Shannan S. Collier


Phone: 404.835.5267Shannan Collier

Email: Contact Shannan Collier

Shannan Collier brings a strong focus on tax and estate planning as well as business, contract and franchise law to serve clients at WJR. She offers exceptional expertise in matters that affect her clients’ businesses and financial profiles, including the taxation of partnership interests and the valuation of business interests.

Shannan earned her Bachelor of Business Administration at the University of North Florida in Jacksonville, FL.  While pursuing her Juris Doctor at Cumberland School of Law and Master of Business Administration at Samford University, Shannan served as an editor for The Trial Journal.  She then went on to earn a Master of Laws in Taxation at Emory University School of Law.

In addition to meeting client needs with the firm, Shannan is a frequent speaker, educating attorneys and other professionals on various business, estate and tax planning techniques.

Licenses & Memberships

  • State Bar of Georgia, Taxation and Franchise & Distribution Sections
  • Florida State Bar
  • American Bar Association


Practice Areas

Practice Areas

Wagner, Johnston and Rosenthal P.C. provides a range of legal services in the following areas:

  • Commercial Litigation
  • Commercial Real Estate Law
  • Corporate & Finance Law
  • Employment Law & Litigation
  • Estate Planning and Probate
  • Franchise & Business Opportunity Law
  • Health Care Law
  • International Business
  • Real Estate Litigation
  • Sports Law
  • Taxation and Tax Controversy
  • Trusts & Estates
  • Other Areas of Practice

Click on a topic to the left to learn more.

Our Attorneys


Our attorneys provide the most comprehensive legal service around. If you are an entrepreneur or small business in a bind, let us assist you. We pride ourselves in providing excellent service to our clients in a range of legal areas. With decades of experience in areas of practice from commercial law to health care and taxation, Wagner, Johnston and Rosenthal P.C. can help. Click on a name to the left to learn more about each attorney and their specialties.

Our Clients


Wagner, Johnston & Rosenthal represents a broad range of privately held businesses, executives and entrepreneurs. While a majority of the Firm’s clientele is based in the greater Atlanta area, the Firm also services clients located throughout the United States as well as in foreign countries.

The industries the Firm represents are as diverse as the economy: manufacturers and service industries, real estate developers, financial concerns, lending institutions, health care professionals and facilities, benefit consultants, software and technology developers, public service agencies, investment partnerships, travel agencies, private schools, engineering concerns, leasing companies, telecommunications concerns, hotel developers, franchisors and professional sports teams.