Try to document the exact location where you fell. If at all possible, contact management and insist that they do an incident report. Don not forget about cell phones. Try to document the scene by taking pictures of what was on the floor or what caused you to fall. The focus on this kind of cases is did the owner of the property know that there was a problem or should have known of the problem. If in doubt contact the Law Offices of Keith J. Stone to assist you.
What should I do if I slip and fall at my local market and/or grocery store?