I slipped and fell when trespassing. Can I sue the property owner?

Maybe. Talk to a Philadelphia slip and fall attorney right away. In Pennsylvania and most other states, property owners have limited legal obligations to keep trespassers safe from harm. Still, they cannot harm you intentionally in many cases. Also, the law protects child trespassers. If your child suffers injuries when trespassing, you may have the right to seek substantial compensation for damages depending on the situation.