HUD requires that lender or third-party appraisers inspect the property and the subject comparables in accordance with MAP Guide requirements to insure the credibility of the resulting valuation conclusion. To the extent that the contracted appraiser cannot physically inspect the site, the appraiser should contract with a local, appropriately credentialed appraiser to perform the site inspection in his/her stead. In this situation, the report must identify the appraiser conducting the site visit, their credentials, and a certification regarding the limit of their inspection, if any. When appraisers are unable to inspect units on-site due to COVID-19 concerns, they should consider the following options:  Conduct inspections of vacant units. If vacant units are the only ones inspected, the appraiser should make an extraordinary assumption that the sample units viewed are representative of all the units. The inspector should provide a detailed review of the differences between these units and the others considered for the valuation.  Use of construction drawings and other available documentation to supplement their physical inspections  Use of information from CoStar or other reporting services and other available documentation to supplement their physical inspections.  Note any previous inspections, if applicable. Any/all sources of information used for valuation purposes must be documented, and multiple sources of information on interior site conditions are preferable to enhance the reliability and credibility of the valuation, in lieu of an actual physical inspection. Appraisers and lenders should contact the HUD field office that will be processing the application for additional guidance. (Updated on 4/2/20)