Hayley Ambler focuses her practice on litigating construction disputes and alternative disputes resolution. She has represented owners, EPC contractors, and original equipment manufacturers in connection with a variety of domestic and international disputes arising from the construction of power plants. Ms. Ambler has handled disputes involving nuclear and coal-fired power plants, Heat Recovery Steam Generators, wastewater treatment facilities, and chemical production facilities, as well as a wide spectrum of other heavy industrial projects. She has been instrumental in achieving many successful results for clients, including obtaining a $26.3 million arbitration award for one of the largest contractors in the United States, which represented 100% of the contractor’s damages, interest, and attorneys’ fees. Ms. Ambler has extensive experience with arbitrations, mediations, and state and federal court trials.

In addition to disputes resolution, a significant portion of Ms. Ambler's practice involves front-end claims avoidance, including effective contract drafting and negotiation, contract management and administration, and project execution. She has served as project counsel for a major oil and gas exploration and production services company during its construction of an offshore production and storage unit. As project counsel, Ms. Ambler was the prime contact for the project team regarding compliance with the contract, disputes, and claims resolution. A primary part of Ms. Ambler’s role was to facilitate the claims resolution process, including the development of a secure client web portal where questions about claims could be posed from the project team for early intervention by counsel.

Ms. Ambler’s previous experience includes serving as a judicial clerk to the Honorable W. Eugene Davis of the United States Court of Appeals for the Fifth Circuit. She was named a 2007, 2008 and 2009 Georgia "Rising Star" in the areas of Construction Litigation, Business Litigation, and International by Super Lawyers magazine.


  • Louisiana State University School of Law, J.D. (1998)
  • Louisiana State University, B.S. (1995)
    summa cum laude

Bar Admissions

  • Georgia (2000)
  • Louisiana (1998)

Who We Are

Suite 2800, 1100 Peachtree Street NE
Atlanta, GA, 30309-4528
t +1 404.815.6080
f +1 404.541.3268

Hayley R. Ambler

Experience Highlights

Representation of EPC Contractor on $4 billion in claims on nuclear power plants
Represented an EPC Contractor involving disputes surrounding the design and construction of four new U.S. nuclear units at two sites. Claims on the more
Construction of a combined cycle power plant for Coryton Energy Co. Ltd.
Represented Coryton Energy Co. Ltd., a subsidiary of InterGen, in resolving claims and negotiating a project closeout agreement with more
Post-construction warranty claims for Rocksavage Power Co. Ltd.
Represented Rocksavage Power Co. Ltd., a subsidiary of InterGen, against Bechtel for the construction of a 700 MW combined cycle power plant. We more
Counsel for a city on waste water treatment plants
Represented a city to defend against $34 million dollars in contractor claims on several waste water treatment plants. The case against the city more