Pick a case. Work it with the coach.

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Brentwood Medical II; an 84,000 SF Class B medical office building south of Nashville, Tennessee

Step I · Ring 1 · AnalyticalP-008

Weighing a TI package recovered through rent premium and free rent

A "stabilized" Nashville medical office building with a clean rent roll and a 6.25% going-in cap. The trick is buried in how the seller is reporting NOI, and once you see it, you can't unsee it.

Cherokee Crossing; a Publix-anchored neighborhood retail center in Cherokee County, Georgia

Step II · Ring 2 · ObservationalP-014

Pricing a deal against a seller's compressed timeline

You're mid-diligence on a Publix-anchored center north of Atlanta. The seller's broker just called: "We need a hard number by Tuesday or we're going with the other group." The other group may not exist.

Step III · Ring 3 · ContextualL-004

Working out a regulated housing loan: extend or enforce

A lender group must choose between extension, enforcement, and recapitalization as a regulated urban housing portfolio strains under an aggressive capital stack.

Step IV · Ring 4 · DecisionL-008

Buying out a late-cycle office platform at scale

At a late-cycle peak, an investor weighs a platform-scale office acquisition where speed, leverage, and exit optionality matter as much as asset quality.

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Try working a case with the private coach.

Four scenarios from the Grindstone library: one for each curriculum ring. Every Grindstone case begins where the spreadsheet ends: in the seam between what the deal looks like on paper and what an experienced investor instinctively suspects is the real story.

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The rings build on each other; work them in order, Ring I first.