It is always a good idea to talk with a lawyer.  Take a look at this web site for possible lawyers.  The liability in your case will depend on where the water came from and how long it had been on the floor.  Here are a few things you should know:  first, don't expect that you will get a copy of the incident report.  These reports are privileged.  Second, make sure that you do not give a recorded or written statement to an insurance adjuster (or anyone) representing Food Maxx.  Most lawyers handled these cases on a contingent fee basis so it will not cost you anything to consult with a lawyer.  Good luck.