Andrew Ehrnstein is a seasoned leader in the renewable energy sector with a proven track record of driving solar adoption through strategic sales, project management, and industry consulting. As the founder of Solar 4 Planet A LLC, he has successfully sold and managed thousands of solar installations, partnering with top-tier installers and finance companies to deliver cutting-edge renewable solutions across multiple states. His expertise spans residential and commercial solar, energy storage, and efficiency, with a strong focus on regulatory compliance and market expansion. Beyond his hands-on leadership, Ehrnstein has played a pivotal role in industry education, serving as a mentor, expert witness, and consultant for leading firms, while also developing Realtor Continuing Education curricula. With a steadfast commitment to sustainability and innovation, he continues to shape the future of renewable energy through strategic partnerships and forward-thinking initiatives.

I’ve had the privilege of working on complex engineering challenges across public and private sectors, leading teams, mentoring professionals, and driving sustainable solutions. My career has been dedicated to solving infrastructure and environmental problems with strategic vision and technical expertise. Here is my biography.

J. Joseph (Joe) Otte is a seasoned environmental consultant and business leader with over 44 years of experience in environmental due diligence, sustainability, and compliance. Throughout his career, he has guided organizations in the engineering, manufacturing, food, and environmental industries through complex regulatory landscapes, ensuring responsible growth and environmental stewardship. With a strong foundation in water and air quality, hazardous waste management, and remediation, Joe has been a trusted advisor in both the private and public sectors. His leadership extends to nonprofit board service, expert witness testimony, and mentoring executives to see beyond their immediate challenges. Passionate about fostering sustainable business practices, Joe is actively seeking board roles where he can apply his strategic expertise, industry knowledge, and leadership acumen to support organizations in their environmental and operational goals.

John Contino is a distinguished financial expert with over 41 years of experience in structured finance, mortgage analysis, and investment advisory. As the founder and principal of Sperlinga Advisory LLC, he has guided institutional clients through complex financial landscapes, specializing in mortgage-backed securities, mortgage servicing rights, and litigation support. His strategic foresight and risk management expertise have been instrumental in successfully navigating market volatility, including his leadership in de-levering investment funds ahead of the 2007 mortgage crisis. A respected expert witness, John has provided testimony in high-profile financial litigation cases, further showcasing his ability to analyze and communicate intricate financial matters. With a strong foundation in investment strategy and structured finance, he is now focused on leveraging his extensive expertise to help businesses grow and thrive in today’s evolving financial environment.

Barry Nadell is a renowned expert in employment background screening, with decades of experience shaping industry standards and legal compliance. As the founder of InfoLink Screening Services, he built a leading background screening firm that was later acquired by Kroll, where he served as Senior Vice President of the Background Screening Division. A founding member and former co-chair of the National Association of Professional Background Screeners (NAPBS), Barry has played a key role in developing best practices for the industry. He is the author of Sleuthing 101: Background Checks and the Law and a sought-after speaker, media contributor, and expert witness in litigation involving employment screening. Currently, he leads Nadell Investigations, providing expert testimony and consulting on background screening issues. His dedication to legal compliance and consumer protection has made him an influential figure in the field.

With over 34 years of experience in engineering, operational strategy, and business growth, I’ve had the privilege of leading teams, managing acquisitions, and driving innovation across multiple industries. My passion lies in helping organizations navigate challenges, optimize performance, and achieve sustainable success. I’m excited to explore new opportunities where my expertise can contribute to strategic growth and governance. Here is my biography.

With over 25 years in law enforcement, including 12 years specializing in police misconduct investigations, Marlon Marrache has built a career defined by integrity, expertise, and a dedication to improving policing standards. As a seasoned instructor, consultant, and former police lieutenant, Marlon combines his Juris Doctorate education with real-world experience to promote accountability and professionalism. His work spans P.O.S.T.-certified training, independent reviews, and public speaking, positioning him as a trusted voice in law enforcement reform. Fluent in English and Spanish, Marlon’s mission, “No Stone Goes Unturned,” reflects his relentless pursuit of justice and organizational excellence.

I’m excited to share my updated professional biography with you all. With over 35 years of experience in the industry, I’ve had the privilege of serving as CEO and Managing Director at Quantum Services International, LLC, where I focus on delivering constructive solutions in commercial management, contract strategy, and dispute resolution. My journey as a Chartered Quantity Surveyor and Arbitrator has allowed me to lead multi-million-dollar projects and navigate complex contractual matters across various sectors, including construction, oil & gas, and energy. I’m proud of the strategic vision and proactive approach I’ve brought to these roles, driving successful outcomes and making a significant impact in the industry.

Randy C. Renfro is a distinguished attorney and Certified Public Accountant (CPA) with a multi-disciplinary specialization in legal, tax, accounting, and consulting services. With over two decades of experience, Randy has built a reputation for his expertise in estate planning, bankruptcy matters, and complex business transactions. As a seasoned professional, he has successfully guided clients through intricate financial and legal challenges, including mergers and acquisitions, debt relief, and tax compliance with the IRS. Randy's background as a retired officer in the United States Air Force Judge Advocate General Corps further underscores his commitment to excellence and service. His strategic insight and deep knowledge of financial forensics and business valuation make him a trusted advisor in both legal and financial arenas.