it would be the responcibility of the management office to reimburse you for any losses, and then the management office can go after the chemical company, but it sounds like somebody F*ed up in the chemical ratios (stupid mantainance people)

maybe the pressure washer lines still had residue from whatever they used to clean a clog out with, that stuff would destroy your paint job in a hurry. damn, sorry that happened to your car, i had to completely repaint my wheels last year because basically the same thing happened except it was my fault, ALWAYS read the directions on wheel cleaner (hot wheels, left on for 20 minutes too long....yeah....)