June 21, 2026
Ep
#406

#406 Mark O'Brien Hard Lessons From Big Risks

Some projects stop making sense on paper long before the story is over. Mark O’Brien talks through bankruptcy, real estate risk, New York red tape, private equity, treehouses, 45 White Oak, and why the experience can still be worth chasing.

Mark's website: https://buildmeabrownstone.com

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