If the tax records are 1 bedroom, 1 bathroom and 976 sq. ft.. Obviously, the is a different is MLS is showing 2 bedrooms, 2 bathroom and 1,028 sq. ft. There are renovations but are there legal permits for addition? Request the legal permits for add-ons. Appraiser may not have found faults but are they legal? By the way appraisers are not contractors.