This can be complicated. It depends on what finish is on there now. Paint; latex or oil. Clear, varnish or lacquer. Not all paint will stick to all of these. I would recommend that the end result will be dependent on how much work you put into it. So this is what I would do if I was looking for a quality job. # and remove doors & drawers. Patch any dings with wood putty, sand imperfections smooth, wipe down with tsp for better paint adhesion, wipe down with clean damp rag, let dry, use shellac based primer. (only finish that will stick to all other finishes) use a sanding sponge to make smooth. Brush on new paint, oil or latex.