I took the liberty of sending your question to the wildlife officer who is in charge of inspections in my part of florida. The following is his reply..he couldn't post up here.
Apply for the license before they come into Florida. The application can be found at www.floridaconservation.org When submitting the application include documentation of experience. Experience of at least 1 year of working with venomous reptiles and this 1 year has to consist of a minimum of 1000 hrs of hands on experience. This documentation can be employment records, letters from knowledgeable people that know of his experience. Copies of rearing logs. Purchase records going back several years. Anything that can substantiate his experience.
Include in the application the number and species in his collection and a description of his caging and pictures would be helpful. Include a check for $100 and all should be smooth sailing.
~~Greg~~