What is the standard of care of the owner of a commercial property where someone slips and falls and falls?

In Britt v. Zagjo Holdings Ltd., [1996] O.J. No. 1014, Mr. Justice Killeen addressed the standard of care in cases involving persons injured on commercial properties. His decision dealt with a plaintiff who slipped and fell, as a result of the poor maintenance of the parking lot, at one of the defendant’s buildings. He stated at paragraph 14: ¶ 14 In cases involving commercial properties of this kind, the question of liability inevitably turns on what kind of system the owner had put in place to meet the statutory duty to keep the premises reasonably safe. It is important to emphasize, as all the decided cases emphasize, that the owner is not the guarantor or insurer of the visitor’s safety, and hence, does not have to set up a full-proof standard, nor does the owner’s system have to be a model of perfection. The standard is reasonableness in all the circumstances.