John R. Thornburgh


Phone: 404.835.5233

Email: Contact John Thornburgh

John is a transactional lawyer with over 20 years experience in commercial real estate and business transactions. His practice focuses on the day to day representation and counseling of business owners and their closely held businesses such as: selection of entity and entity formation; shareholder, partnership and operating agreements; mergers, asset and stock acquisitions and sales; debt and equity financings and loan transactions; commercial real estate acquisitions, development and sales; non-competition and employment agreements; and dispute resolution involving partners and shareholders. A significant part of John’s practice involves dealing with the issues routinely encountered by the business owner, including employment disputes, partner disputes, vendor and service provider disputes, lease negotiations and debt restructuring.

John has assisted clients in a number of asset and stock acquisitions and sales and company mergers; hotel, office, retail shopping center acquisitions, developments, sales and financings; office and retail lease negotiations representing landlords and tenants; drafting of employment and consulting agreements including covenants not to compete for employers and employees; loan transactions representing lenders and borrowers; formation of startup companies and assisting with the recapitalization of existing businesses; negotiating and drafting shareholder agreements, llc operating agreements; and with the assistance of the Firm’s litigation attorneys, negotiating and documenting “business divorces” when partners and shareholders find it difficult to continue in business with one another.

John R. Thornburgh graduated from theĀ University of Georgia with a double major in English and Economics (B.A. 1984) and from the University of Georgia School of Law (J.D. 1987), where, in addition to his studies, he served as a member of the Editorial Board of the Georgia Journal of International and Comparative Law and worked part time as a research assistant for a professor in the School of Business. John began his legal career with the Firm in 1987 and was admitted to the Georgia Bar in 1987.

Away from the office, John devotes much of his time to his wife and children where he is regularly involved in activities at church, school, youth sporting events and scouting.

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

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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.