Greg MacDonald, Ballast Investments

Gregory MacDonald is reshaping how multifamily real estate is owned and operated—not through flash, but through discipline, systems, and a clear-eyed commitment to operational intelligence. As Co-Founder and CEO of Ballast, MacDonald has led the firm’s evolution into one of the most forward-thinking residential operators in the country, with a platform that manages more than 7,700 units across 400 properties.

At a time when “AI in real estate” is often little more than marketing copy, MacDonald and his team have built something different. In partnership with Palantir Technologies, Ballast developed a custom control system, known internally as Asset360, that links every operational function in real time, from leasing and maintenance to vendor oversight and capital planning. That system is already active across the portfolio, shaping decisions, improving performance, and helping teams on the ground focus on outcomes instead of coordination.

The results are visible. Collections now regularly exceed 94% within seven days. Maintenance costs have dropped by more than half. Compliance workflows are tracked automatically. And in one of Ballast’s largest assignments to date—a 2,100-unit, 75-building portfolio operated on behalf of Brookfield—the company completed over 1,000 unit turns and stabilized collections within a single quarter. That performance helped Ballast win the contract to manage Parkmerced, one of the most complex multifamily communities in the Western United States.

MacDonald’s approach is grounded in the belief that great operations begin with ownership alignment. Ballast doesn’t just manage assets. It builds the systems needed to run them well, then holds itself accountable through live metrics and full transparency. That mindset, combined with a deep investment in technology, has positioned the company as a go-to partner for institutional investors tackling high-touch housing challenges.

In an industry where innovation often stops at software adoption, Gregory MacDonald has shown what it looks like to embed intelligence into the core of a company and use it to deliver real results, at scale. These are some of the reasons why Greg MacDonald was selected to receive ApartmentBuildings.com’s first annual AB 100 Innovator of the Year Award, which recognizes those who demonstrate creativity, skill and success in the multifamily industry.