You cannot use interior paint on the outdoor kitchen area. You'll be lucky to get the exterior paint to stick and not be a constant maintenance problem with Florida humidity. I think it's safe to say that paint on your cabinets is a short term solution. Replacing the door and drawer faces would be the long term solution. You'll have to wash the faces with TSP & sand the laminate finish so the paint will grip, apply the appropriate Kilz primer and then use a good exterior enamel. I'm using a new exterior paint from Lowes on wood Adirondack chairs I am repainting called DURAMAX. It's water based. It has a primer in it but the tech at Lowes recommended using an additional primer to eliminate problems and adhere the paint better. So far so good. Do NOT brush. Use a small 4" short napped roller. This paint is good enough that after you roll, the paint will level out. You don't want marks from a brush on these plain flat doors. I would use the same combination of paint in the bath and lanai. Good luck.

I read the instructions at the below link and they pretty much covered everything. The only thing I can think of that they didn't mention is there is paint made just for painting kitchen cabinets you might want to look into. There are lots of ladies here that have done this that may have some other tips to add too. Good Luck! Here is a link that might be useful: e-How instructions for painting kitchen Cabinets

It's really difficult to paint plastic and have it stick. First, you need to determine if it's thermofoil or melamine. Thermofoil is thicker thqn melamine and slightly stretchy, so it's difficult to sand. Melamine is harder and more rigid, and can scuff readily with sandpaper. If you have flat slab cabinets, they're probably melamine, and if they have some profile to them, they are probably thermofoil. Thermofoil will need to be wiped down with a chemical deglosser that slightly melts it surface. That will allow the primer to bond with it. Melamine will need to be scuff sanded thouroughly. You need an alkyld primer, and do two coats, allowing it to thouroughly dry between coats. Then you can choose any color of latex enamel for a top coat that you want. That paint job will get you by for a while, but it won't really hold up to the long term. It's also a lot of work. It's up to you if you want to go through all of that for a limited benefit, but I'd personally save my effort and money towards a more thourough redo. If they were wood, it'd be another story, but painted plastic, well...... I wouldn't go there.

Amazing at how others so tritely suggest you spends thousands of dollars, rather than spend $50 for a DYI project. Most of the paints on the market intended for existing cabinets, will bond directly to the old finishes, including laminate, without a primer. The most important thing is that the cabinets be clean, especially of oils from cooking or being handled with oily fingers. A scuff sanding is not a bad idea too. With proper application, the painted finish should last for years. Of course, they will occasionally get a chip when someone hits them. It is always a good idea to keep a small container of touch-up paint. I recommend Behr's Water Based Alkyd Enamel for such projects. It dries hard, like a true oil based enamel. It flows out well, leaving minimal brush marks. It can be sprayed, but airless equipment is preferred. The best part is that it is only $35 per gallon, which should do a small kitchen.