Courtney Ernston, North Star Law Group PLLC

Courtney Ernston is president of North Star Law Group in St. Paul, where she has established a forward-thinking, client-first philosophy that challenges traditional law firm practices. Under her leadership, the firm has implemented technology-driven systems to enhance transparency and efficiency, while introducing alternative billing models including flat-fee and subscription-based services to improve affordability and predictability for clients.
Ernston specializes in business and construction litigation, drawing on her family background in the construction industry to provide clients with advice that combines legal expertise with commercial insight. Her practice focuses on helping contractors and real estate professionals navigate complex legal and regulatory challenges through direct, solutions-oriented advocacy.
In recent litigation, Ernston secured a complete victory for her client, obtaining all sought damages while the opposing party received nothing. This outcome demonstrated her strategic approach to results-driven advocacy and reinforced her reputation for effective litigation management.
As a regular speaker at industry events and continuing education programs, Ernston provides guidance to contractors and real estate professionals on legal and regulatory matters. Her communication style emphasizes practical, real-world applications that help industry participants understand and manage their legal risks.
At North Star Law Group, which recently celebrated its second anniversary, Ernston has cultivated a workplace culture that values teamwork, transparency, and work-life balance. She currently mentors three law clerks — all women — providing hands-on training through court appearances, strategic discussions, and practical legal experience. Her mentorship approach focuses on ensuring young professionals gain confidence and real-world experience in legal practice.
Ernston is actively involved in construction-specific trade groups including Housing First Minnesota and the Minnesota Builders Exchange, where she serves as a resource for members facing business and regulatory challenges. Her involvement bridges the gap between legal practice and industry realities, making her a recognized resource in construction law circles.
Through her leadership at North Star Law Group, Ernston has redefined legal service delivery while maintaining a focus on long-term client relationships and collaborative firm culture.