Bert Fish was again in the Judge's chair from 1931 to 1933, reprising his role as judge of the criminal court of Volusia County.  In 1933, Fish was named Minister to Egypt by President Franklin D. Roosevelt, serving until 1941.  He also served as the first U.S. Minister to Saudi Arabia (by the official title of Envoy Extraordinary and Minister Plenipotentiary) during the period August 7, 1939 to February 28, 1941.  During this time, his activities were critical in opening the Middle Eastern petroleum market to the U.S. and Europe which has been vital to the continuing growth of the world economy. He is still remembered in Saudi Arabia for his positive role in the development of its relationship with the U.S.  As a close confidant of President Franklin D. Roosevelt, his diplomatic efforts helped isolate the strengthening Nazi regime from the critical oil supplies of the middle east. After the outbreak of World War II, Bert Fish was appointed Ambassador to Portugal. Judge Bert Fish died in Lisbon in 1943 of unknown circumstances while serving in that post.

During this same period, Cary D. Landis was appointed Florida Attorney General in 1931 by Doyle Carlton, the newly-elected governor (1929-1933).  On November 23, 1931, Attorney General Landis ruled that the duty of the State Road Department is to maintain the state roads and enforce the laws enacted to preserve its physical structure. As a result of this ruling, the road department hired 12 weight inspectors who were placed under the supervision of the division engineers. This was the beginning of the state law enforcement in Florida, and the foundation of what would become the Florida Highway Patrol. 

Also during his tenure as Attorney General, Mr. Landis argued before the United States Supreme Court in several cases including Wall v McNee 55 S.Ct. 835 (1935).  In this notable case, Cary D. Landis argued against his son, Erskine W. Landis, who was then practicing with the firm. Also arguing the case was fellow firm member Francis P. Whitehair. Other cases argued by Attorney General Landis before the United State Supreme Court included Atlantic Coast Railroad v State of Florida 295 U.S. 301 (1935) and Lee v Bickell 292 U.S. 415 (1934). He served as Florida Attorney General until his death in office in 1938.  

Landis Hall, completed in 1939 on the campus of Florida State University, was originally designated as Seniors Hall. However, after the death in office of the Attorney General, the building was renamed Landis Hall in memory of Cary D. Landis. The hall sits at the south end of the courtyard known as Landis Green, with Strozier Library situated at the other end.

John L. Graham and J. Compton French became firm partners in 1941, and for a brief period the firm name was Hull, Landis, Whitehair, Graham & French. Prior to becoming partners, both John Graham and J. Compton French had served as Assistant Attorney General under Cary D. Landis in Tallahassee in the 1930's.

Another name change occurred just one year after Francis P. Whitehair left the firm and joined the Navy as a commissioned officer. At that time, the firm name was changed to Hull, Landis, Graham & French. After the end of World War II, Whitehair was appointed Under Secretary of the Navy by President Harry S. Truman. During his career, Whitehair ran for the U.S. Senate and for Florida Governor.

During this time, the firm represented the Estate of John B. Stetson, namesake of Stetson University; the Estate of Adolph DeBary, namesake of the City of DeBary; and the Florida Estate of John D. Rockefeller, Sr., the Standard Oil magnate.