Part-time real estate appraisers assess the value of a property for clients. Some part-time real estate appraisers work primarily with commercial properties while others focus on residential appraisals. Depending on your certifications, can perform both types of assessments. As a part-time real estate appraiser, your job duties include examining a home or building, researching comparable sales in a neighborhood, and estimate the property value for county or municipal tax purposes or for a client who is buying or selling a home. Part-time real estate appraisers work thirty hours or less per week and may hold another job at the same time.