Business & corporate
Finance, corporate transactions and related commercial advice.
Explore this practice in ChicagoMayer Brown
Mayer Brown’s original Chicago office focuses on finance, corporate work and litigation. Its local practice includes major business transactions and infrastructure matters, drawing on the firm’s international network.
Offices & contact
Practice areas
Commercial litigation
Business litigation and complex disputes.
Explore this practice in ChicagoReal estate & construction
Infrastructure and development matters, including significant Chicago transportation projects.
Explore this practice in ChicagoAttorneys
The available sources identify these attorneys. This is a partial roster; the firm’s website may list additional people.
Joanna K. Horsnail
Partner; Chicago office managing partner
Leads the Chicago office and is the firm’s published local managing-partner contact.
Profile sources
Reviewed October 26, 2026. Facts and affiliations can change.
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