Kernrechtsfrage
Whether the shareholder interest in the real estate company was business assets or private assets for direct federal tax.
Extrahierter Entscheid
The participation was business assets because the brothers conducted a side real-estate dealing activity through the partnership and controlled the company.
Extrahierte Begründung
The court relied on the overall pattern: formation of the partnership, acquisition of the company, financing with external funds, active combined use of work and capital, and the later transfer of properties as part of a broader trading activity.