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Quadrant beefs up with trio of appointments and trio of promotions

Group expanding strategic development and transactions teams
(From left): Alice Liao, John Tweddle, Sebastian Patrick. (Quadrant)
(From left): Alice Liao, John Tweddle, Sebastian Patrick. (Quadrant)
CoStar News
January 15, 2026 | 9:29 AM

Quadrant has announced three appointments and three promotions as it expands its strategic development and transactions teams.

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