Maui County has done a good job of providing a step by step application process. Before starting..... remember to check all of the structures on your property to be certain they are properly permitted. This will save time as you move through the B&B permit process.
The application package guides you through the permit paperwork step by step.
All properties with agricultural zoning will also require a State Special Use Permit. Your first step is to register your farm plan, and be certain it is fully implemented.