Midtown National Group | 189 followers on LinkedIn. The Midtown National Group (MNG) is a boutique real estate investment management company that provides individuals, family offices, and other small investments firms the opportunity to invest alongside MNG in real estate ventures across all asset classes and business plans. MNG deploys equity and debt directly and with seasoned, professional development partners and sponsors. MNG owns and self manages a portfolio of over 150 properties across 25 states.