How long are they staying? Here are some make ahead ideas,
Lasagna is easy to make ahead and freeze. Then you can just keep bagged salad and even frozen rolls at the ready.
I also highly recommend Gretchen's Lamb You Can Eat with a Spoon, because it's actually better if made a day or 2 ahead. There are lots of stews or braises like this that might be a good option. It's a little warm for that in Florida now, so you could also do a dinner salad of romaine with sliced flank steak, carmelized onions and blue cheese with a nice vingarette, all done ahead and stored separate. Quick to throw together and with crusty bread makes a nice dinner for hot weather.
We throw salmon on the grill when we have out of town guests, very little prep and about 10 minutes on the grill total and we don't have to heat up the kitchen. We usually serve with a pesto pasta salad when it's hot out. I keep hagen-daz lemon sorbet on hand for desserts.. serve a scoop in a chilled martini glass with a sprig of mint and fresh berries. It looks sophisticated but is dead simple.
For lunch, you could make different spreads ahead of time, like horseradish cream, roasted pepper, blue cheese, and then use them with different meats (tenderloin made-ahead would be fantastic) on bakery bread with arugula or greens to make hearty sandwiches for lunch with some store bought fruit salad.
Pasta salads or antipasti plates might be a good lunch option too. Costco makes some nice pre-made chicken salad and crudite platters too.
For breakfast, I keep quick breads like NLB's banana bread in the freezer, then thaw in the fridge or on the counter overnight. Again, with store-bought fruit salad it's easy to throw breakfast together. Scones with jam are my favorite, but do require some preparation and baking, but go together really quickly. I pre-measure dry ingred. and put in ziplock bag, then just add cream and pop in the oven.
I'd be happy to post recipes for stuff if anything sounds helpful.
Enjoy your guests.