Our Team
Our team is a collaborative group of dedicated legal professionals who support one another, our clients, and our community. We believe that the power of a team is greater working together than individually. This is true for our team internally, and even more true when we work collaboratively and proactively with our clients and their other advisors. We can all learn, grow, and achieve greater results when we work together.
Heather Johnston
Managing attorney
hjohnston@sapphire.law | (949) 281-2121
Heather Johnston founded Sapphire Law Group in 2017, after practicing law at a boutique law firm in Sacramento for more than a decade. Heather first became interested in estate planning in law school, where she earned the Witkin Award in Wills & Trusts and received a Concentration in Taxation. Over the many years that she represented clients in all facets of real estate transactions, Heather developed a specific focus on planning and distributions from family trusts comprised of complex real estate portfolios and entity interests. Today, Heather uses this specific background to counsel clients with complex real estate planning, business succession planning and property tax planning opportunities. Heather is a Certified Specialist in Estate Planning, Trust and Probate Law, by the State Bar of California Board of Legal Specialization.
Amanda Cha
Paralegal
acha@sapphire.law | (916) 546-5023
Amanda Cha joined Sapphire Law Group in January of 2020. Amanda learned how to serve the firm and its clients during a pandemic, navigating work from home schedules, urgent client needs, and even greater reliance on the firm’s already prolific technology platforms. During this time, Amanda also attended school full time to obtain her Paralegal Certificate. Amanda has continued to grow and thrive in a paralegal position.
Kathleen Emert
Client Support Assistant
kemert@sapphire.law | (949) 281-2121
Kathleen joined Sapphire Law Group in June 2025 with more than 15 years of experience in administration, accounting, client service, and human resources. A natural team player, she takes pride in lightening the load for her colleagues so they can focus on what they do best. Known for her keen attention to detail and love of organization, Kathleen also brings warmth and good humor to every interaction, helping to lift up those around her.
Antoinette Johnson
Client Support and Marketing Assistant
ajohnson@sapphire.law | (949) 281-2121
Antoinette Johnson has an educational background in journalism and a professional background in digital marketing and branding, with an emphasis on project management and administrative operations. She has worked with a range of business owners and agencies, helping them streamline their systems, enhance organization, and support sustainable growth. Antoinette is passionate about building structure behind creative visions and ensuring projects move forward with clarity and momentum.
Kenny Johnston
Firm administrator / Software Engineer
kjohnston@sapphire.law | (949) 281-2121
Kenny brings a unique combination of skills to Sapphire Law Group. He has two decades of experience creating and managing technology for law firms and legal services providers. He has led countless software development projects, managed distributed teams and written software used by hundreds of law firms to streamline their operations, information management and integrations with various platforms.