Office buildings lease commercial space to various tenants, including professional service providers, medical providers, and sales offices. The leases can be offered on a short-term basis or extend through a number of years. Premises liability exposure can be high due to the number of tenants and visitors to the property. All buildings should meet life safety codes and be in compliance with codes on smoke and fire detection and fire extinguishers. To prevent slips, trips, and falls, all premises must be well maintained with aisle ways free of debris, flooring in good condition, no frayed or worn spots on carpet, and no cracks or holes in flooring. The number of exits must be sufficient and well marked, with backup lighting in case of power failure. Steps should have handrails, be well lighted, marked, and in good repair. Parking lots and sidewalks need to be in good repair, with snow and ice removed, and generally level and free of exposure to slip and fall.