Aaron Murphy built a 75-unit rental portfolio across Baltimore, Maryland in just 11 years while transitioning from traditional employment to full-time real estate investing. His vertically integrated approach combines house hacking, the BRRRR strategy (Buy, Rehab, Rent, Refinance, Repeat), and in-house construction and property management operations.
Murphy's model eliminates middlemen by handling renovation, maintenance, and management internally. This vertical integration cuts costs significantly. Rather than paying contractors and third-party managers percentage fees, Murphy's team controls the entire process from acquisition through tenant placement and ongoing maintenance.
House hacking formed his entry strategy. By living in one unit while renting others in multi-unit properties, Murphy reduced his personal housing costs while building equity. He then leveraged early gains into additional acquisitions using the BRRRR method. Each property cycle involved purchasing undervalued units, renovating them with his internal team, refinancing at higher valuations, then extracting capital for the next deal.
Baltimore's market provided the foundation for this expansion. Property prices in the area remain accessible compared to coastal markets, allowing Murphy to acquire multiple units without requiring massive capital injections. Rental income from existing units funded subsequent purchases and renovations.
By year 11, Murphy's 75-unit portfolio generated enough cash flow to replace his W-2 income entirely. His in-house operations mean maintenance calls go directly to his team rather than external contractors, improving response times and preserving margins. Property management happens internally too, cutting the typical 8-10 percent management fee most landlords pay to third parties.
Murphy's trajectory illustrates how systematic acquisition, operational efficiency, and geographic selection enable rapid portfolio growth. Investors seeking similar outcomes focus on markets with lower entry costs, develop renovation capabilities or partnerships, and commit to long-term ownership rather than quick flips. The Baltimore market continues