A: Is the finish on the floors a polyurethane or wax? If it is latex paint, and especially if it is fairly fresh, a cloth a little bit wetter than just damp, with warm water, and lots of elbow grease, may get it off. Or a fine nylon abrasive pad, trying not to damage the finish. Otherwise buffing with a floor polisher machine and a fine screen pad, or fine sandpaper, done by hand will likely work. This would require a re coat of the floor.

