No. Under Pennsylvania law, property owners have the legal obligation to maintain a safe environment for people who visit their premises. Maintaining safety usually means owners must warn visitors of any known dangers on a property, and must make reasonable efforts to eliminate or fix any hazards that exist. Failure to take these reasonable steps can make the property owner legally liable for any injury a visitor suffers after falling because of a hazard.
In other words, a property owner is not automatically liable to you if you get hurt in a fall. However, the owner faces potential liability if you fell because of a dangerous condition on the property the owner should have fixed and/or warned you about.