[1] Hollis was an announced candidate for the United States Senate election in Louisiana, 2014, but withdrew from the race in July.

Hollis held his first job – for a lawn care service – at the age of thirteen and worked through high school as a restaurant busboy.

At Louisiana State University in Baton Rouge, Hollis opened his first small business, a karate school.

Hollis was employed by as the youngest salesperson at Blanchard and Company of New Orleans, one of the nation's largest rare coin and precious metal firms.

In the winter of 2004, Hollis joined the Odyssey Marine Exploration to salvage coins from the SS Republic (1853).

[5] In 2008, Hollis notably arranged for and escorted the 1844-0 Proof $10 Eagle, worth $2.5 million, to be on display at the Old U.S. Mint of the Louisiana State Museum in Baton Rouge.

His District 104 was newly redrawn as a result of the legislative redistricting plan, Act 1 of the 1st Extraordinary Session of 2011, signed into law by Governor Bobby Jindal on April 14, 2011.

[7] The district covers parts of the St. Tammany Parish communities of Mandeville, Abita Springs, Covington, Lacombe, Pearl River, and Slidell.

[9] In May 2017, Hollis obtained House passage, 70 to 27, of his bill to make it easier for voters to recall public officials.