Being a landlord in Delaware can be a lucrative investment, but it also comes with legal responsibilities. To avoid potential legal issues, landlords should take proactive measures. Firstly, they should ensure that their rental units meet all the health and safety codes. Secondly, they should make sure they have a written lease agreement that complies with Delaware landlord-tenant law. Additionally, landlords should provide proper notice before entering a tenant's unit and handle security deposits correctly. Lastly, landlords should keep accurate records of all transactions with tenants. Following these tips can help landlords avoid legal issues and maintain a successful rental business under Delaware landlord-tenant law.