Take into account the number of guests that will attend your event. Make sure to book all of you event needs in advance. Catering items, rentals and waitstaff services are reserved well in advance, especially during peak season. These are a few items you may want to consider.
Make sure you have enough counter space or tables to accommodate all of the food you plan to serve. Leave room for plates, flatware, bread, salads and condiments. Here is a list of items you may need.
Make sure you have enough space for the bar area to accommodate all beverages and supplies. Here is a checklist for a typical bar set up.