The purpose of this document is to establish best practices and guidance for conducting the energy analysis required for multifamily (MF) building energy improvement projects funded by the various programs of the Maryland Department of Housing and Community Development (DHCD). The intended audience includes energy auditors, building owners and operators, contractors, designers, architects, engineers, and energy efficiency consultants and program staff. Use of the best practices in this guide will improve the accuracy and uniformity of energy audits, and increase the alignment between predicted and actual energy savings in retrofitted MF buildings.