Grant & Main manages 100+ doors across Macomb, Oakland, and Wayne counties. GrantMainOS is the operating system that ties acquisitions, construction, management, brokerage, and leasing into a single view.
Most firms pick one lane. Grant & Main runs the full stack. GrantMainOS makes every piece visible.
Occupancy tracking, maintenance pipelines, rent collection, and tenant communications across every door in the portfolio.
Deal pipeline visibility from prospect to close. Track comps, run analyses, and manage the entire acquisition lifecycle in one place.
Real-time portfolio dashboards for every property owner. Financials, vacancy, maintenance status, accessible from anywhere.
From full rehabs to emergency repairs. Track projects, vendor costs, and timelines without leaving the system.
Revenue per door, expense tracking, NOI calculations, and cash flow projections. The numbers that matter, updated daily.
Application tracking, screening automation, and lease management. Fill vacancies faster, with better tenants.
No other firm in Southeast Michigan runs every stage of the investment. That's the edge.
Source deals, run comps, and close acquisitions with brokerage support built in.
In-house construction management for renovations, rehabs, and unit turns.
Full property management: leasing, maintenance, tenant relations, accounting.
Portfolio analytics and market intelligence to scale with confidence.
Grant & Main already operates the full vertical stack. GrantMainOS turns that into a system, where every door, every dollar, and every decision is connected and visible in real time.