Landlords have several key responsibilities to ensure their rental properties are safe and habitable. They must maintain the property, which includes making necessary repairs, ensuring plumbing and electrical systems work properly, and keeping common areas clean. Additionally, landlords are required to comply with local housing codes and regulations, which may include providing adequate heating, water, and sanitation. Another important responsibility is to respect tenant rights. This includes providing proper notice before entering the rental unit, returning security deposits in a timely manner, and addressing tenant complaints promptly. Landlords must also ensure that the lease agreement complies with local laws and protects both parties' rights.