With multiple decades of legal experience, Steven Guynn has facilitated numerous high profile, multinational transactions. In the banking sector, he represented Crédit Agricole in a $20 billion merger with Crédit Lyonnais. His efforts included enabling American financial institutions to participate in buying Crédit Agricole shares and exchanging Crédit Lyonnais shares by ensuring compliance with American regulations related to Rule 144A. In another transaction, Steven Guynn assisted TNK in creating a $19 billion joint venture with British Petroleum in Russia, the largest investment by a foreign firm at the time.