The Maryland Real Property Valuation Petition of Appeal is a process for property owners to challenge the assessed value of their property, as determined by the Maryland State Department of Assessments and Taxation (SEAT). This process allows property owners to dispute the value determined by SEAT, and appeal to the local government in order to receive a favorable reassessment. There are three types of Maryland Real Property Valuation Petition of Appeal: 1. Complaint of Assessment: This process allows a property owner to appeal an assessment of their real property if they feel that their property has been overvalued by the SEAT. 2. Complaint of Exclusion: This process allows a property owner to appeal an exclusion of their real property from taxation if they feel that their property should be included in taxation. 3. Complaint of Classification: This process allows a property owner to appeal the classification of their real property, which determines the amount of taxation they will pay, if they feel that their property has been wrongfully classified.