Sirena Castillo

Exceptional guidance through a complex regulatory investigation

I engaged Sirena Castillo of Manatt, Phelps & Phillips after my company faced a daunting SEC inquiry. From our first meeting, her deep understanding of white-collar defense was evident. She meticulously explained the nuances of the regulatory landscape, translating complex legal jargon into clear, actionable steps. Her recognition in Best Lawyers for Criminal Defense: White-Collar is well-deserved; her strategic approach was both proactive and measured, helping us navigate the investigation with a focus on minimizing disruption to our operations. Sirena’s background from USC Gould School of Law and her sharp analytical skills were crucial in building our defense strategy. She was always prepared and her professionalism under pressure was reassuring. The one area where we occasionally experienced slight delays was in receiving email responses during particularly busy periods, though her team was always helpful in bridging the gap. Ultimately, her diligent work contributed to a favorable resolution. I highly recommend Sirena for anyone in Los Angeles needing sophisticated and steady counsel in high-stakes regulatory matters.