Deian (Dan) Kazachki
Deian (Dan) is licensed as an attorney in the states of California and Washington. He is also admitted to practice in the Central and Southern Federal Districts of California, as well as the Northern District of Texas. Dan has been practicing law for more than 10 years, mostly in Southern California. Dan formed Arbat, A Law Corporation in 2017.
After moving to the US as a teenager, Dan obtained a Bachelor of Science Degree in Architecture in 1998 and spent the next decade working as an intern, project manager and finally project architect in design and construction. He is LEED AP BD+C accredited by the US Green Building Council and Certified Construction Contract Administrator certified by the Construction Specifications Institute. Dan continues to be very involved with architecture and construction and maintains his California and Texas architecture licenses and other credentials. Dan is also a licensed real estate broker in California.
While working full-time in construction Dan graduated from law school in 2006 and then spent the next two years earning a graduate certificate in Dispute Resolution from Southern Methodist University in Dallas, TX. Dan is a certified mediator and family mediator in Texas and has participated in hundreds of disputes, both as the mediator and arbitrator, as well as a party representative. Dispute resolution methods such as negotiation and mediation are often used in the practice of law and must be an integral tool of each attorney’s toolbox. Dan was recognized by the Dallas BBB for his efforts as a construction arbitrator. Dan is currently serving as a Daily Settlement Officer both at the Whittier and Long Beach Courthouses where he is focused on assisting parties with resolving their family law cases.
Dan enjoys chess and tennis, is fully bilingual in Bulgarian and English.
Can be reached at dan@arbatlaw.com
Tomas Ballarati
Tomas is an attorney licensed to practice law in California. He is experienced in both transactional matters and litigation, including Family Law, Civil and Business disputes, and Landlord and Tenant matters. He is fluent in English, Spanish and Italian.
At Arbat he serves as Associate Attorney, assisting Dan with supervising all of our cases and overseeing case development from intake to resolution. He has managed high-volume caseloads involving multi-party litigation, motion practice, and complex fact patterns. He oversees case strategy development across multiple practice areas and supervises junior staff, ensuring quality control across all filings and deliverables. He works closely with Dan and each Case Manager to design and implement strategic action plans for complex or contested matters.
He holds an LL.M. from George Mason University and publishes regularly on legal practice, professional development, and industry trends. Tomas also holds leadership roles within the American Bar Association, acting as Vice Chair for the Tort, Trial and Insurance Practice Section, and as an editor of the ABA Journal and Year-In-Review.
Outside of work, he enjoys cooking, visiting the shooting range, and spending time with his family.
He can be reached at tomas@arbatlaw.com
Agustina Burde
Agustina is a law graduate and Case Manager at Arbat. She has been part of the firm for nearly three years. In her role, she supports the firm’s attorneys in managing cases across multiple practice areas, including family law, probate and trust administration, and landlord/tenant matters, helping ensure that each case moves forward efficiently, clearly, and smoothly.
She speaks both English and Spanish. Agustina plays a key role in maintaining clear and consistent communication with clients and coordinating case strategy with attorneys and team members. She is known for her strong organizational skills, structured approach to case management, and her calm, solutions-oriented demeanor, particularly in high-pressure or emotionally charged situations. Her proactive mindset and attention to detail help keep matters on track and clients well-informed throughout the process.
During law school, Agustina participated the Willem C. Vis International Commercial Arbitration Moot, traveling throughout Europe and further developing her legal research, writing, and advocacy skills. She also worked as scientific research in Family Law under a scholarship and served as a teaching assistant in Family Law and Constitutional Law. Her ability to explain legal processes clearly and patiently has been especially valued by those she works with, helping others feel grounded and supported during challenging moments.
Outside of work, Agustina is passionate about sports and staying active. She has played field hockey since she was 7 years old, reflecting her leadership skills, discipline, and team-oriented mindset. Energetic and outgoing by nature, she enjoys staying busy, connecting with others, and taking on new challenges both professionally and personally.
She can be reached at agustina@arbatlaw
Bautista Ramirez
Bautista is a 24-year-old law graduate. He is a Case Manager at Arbat and has been part of the firm for over three years. He supports the firm’s attorneys in managing cases across multiple practice areas and helps ensure that matters move forward efficiently and smoothly.
He is fluent in English and Spanish. Bautista enjoys collaborating with attorneys and team members to develop action plans for cases, maintain clear communication with clients, and assist with case organization and follow-up. He has a particular interest in commercial law, bankruptcy, trademark matters, and estate planning, and enjoys working on cases in these areas.
During his time in law school, Bautista participated in several moot court competitions, traveling throughout Europe, which strengthened his legal research, writing, and advocacy skills.
Bautista is very sociable; he enjoys staying busy and is always making plans, whether it’s connecting with friends, attending events, or taking on new activities. Outside of work, he is passionate about sports and film, and enjoys staying active and exploring cinema, reflecting his energetic and outgoing personality.
He can be reached at bautista@arbatlaw.com
Stefano Arboleda
Stefano Arboleda is the Office Manager and Bookkeeper at Arbat, where he oversees the firm’s day-to-day operations, maintains accurate financial records, and supports administrative and human resources functions to ensure the firm operates efficiently and seamlessly.
He is currently pursuing studies in Actuarial Sciences at the University of Buenos Aires (UBA) and has a strong professional interest in finance, taxation, accounting, and data analysis, disciplines that directly inform his work and contribute to the firm’s organizational and financial integrity.
Fluent in Spanish and English, with working knowledge of Italian, Stefano values continuous learning and applies a detail-oriented, analytical approach to his responsibilities. Outside of work, he enjoys reading, swimming, working out, traveling, and video games.
He can be reached at stefano@arbatlaw.com
