OUR EXECUTIVES HAVE DECADES OF COMBINED LEADERSHIP EXPERIENCE IN THE MULTI-FAMILY INDUSTRY
MEET THE TEAM
Johnny Scheff
Co-Founder
Johnny Scheff is a real estate operator and business leader with over a decade of experience spanning construction, property management, and asset management. His professional journey has taken him from Construction Director in Philadelphia to executive leadership in Houston, where he has managed major renovations and real estate assets at scale. As Co-Founder of Gemstone Management, Johnny helps oversee approximately 3,000 units, bringing a hands-on leadership style and a strong focus on performance, growth, and long-term value.
In addition to his work in real estate, Johnny is actively involved in philanthropic and community-based initiatives, including Chai Lifeline and Chaverim of Houston. His commitment to service reflects the same values that guide his business approach: leadership, responsibility, and impact.
Joseph Goldberger
Co-Founder
Joseph Goldberger's journey from Brooklyn to Houston reflects years of hands-on industry experience, growing from an assistant manager into a leadership role overseeing property operations, financial performance, and management systems across multiple communities. Joseph is known for his detail-oriented, systems-driven approach and works closely with property owners to improve efficiency, strengthen collections, and implement practical strategies that maximize long-term property value.
Outside of his professional work, he is actively involved in community service and volunteers with Hatzalah, assisting with emergency medical response in the local community.
OUR FOUNDERS
Have combined their unique strengths and years of experience in the field of property management to create a strong and reliable company that is committed to delivering exceptional service to our clients and residents.
PROFESSIONAL PRECISION,
LONG TERM RELATIONS
OUR TEAM
Our dedicated team members
Leonard Tyson
Chief Operating Officer
Leonard Tyson Sr. is an accomplished Director of Operations and Chief Operating Officer with a distinguished record of success in corporate management. He brings extensive expertise in driving profitability, reducing operational costs, and excelling in financial management. With a strategic, results‑oriented approach, Tyson has consistently delivered measurable improvements that enhance organizational efficiency and effectiveness. His leadership is marked by a deep understanding of the operational intricacies that directly impact a company’s bottom line. Notably, Tyson has successfully transformed underperforming assets into profitable ventures, demonstrating his ability to unlock value and generate sustainable growth. A proven leader, Tyson combines sharp financial acumen with operational excellence, guiding teams with clarity, accountability, and vision. His track record reflects a commitment to maximizing performance, strengthening organizational resilience, and positioning companies for long‑term success.
Reuven Karman
Director of Finance
He is a seasoned finance professional, graduating with Summa Cum Laude honors in Actuarial Science from Touro College. He began his career as an Accounts Payable Representative and later advanced to roles such as Financial Analyst and Assistant Director of Finance, where he oversaw financial audits, payroll management, and financial reporting. His expertise extends to real estate, culminating in his promotion from Director of Finance to CFO, highlighting his strategic leadership and financial prowess across various industries.
Jennifer Hall
Regional President of Dallas Division
Jennifer is The President of DFW and surrounding areas. She is a collaborative leader with over 20 years of extensive experience in property management. Renowned for her expertise in value-add strategies and property repositioning, Jennifer has successfully led numerous initiatives that have enhanced asset value and community living. Her dedication to excellence has earned her multiple accolades within the apartment industry, underscoring her commitment to innovation and high standards. Jennifer is known for cultivating strong client relationships, ensuring satisfaction and success in every project she undertakes.
Leslie Resendez
Property Manager Assistant
Leslie is a dedicated property manager and a proud mom of three, skillfully navigating the busy balance of work and family life. She cherishes her nightly ritual of enjoying a warm cup of coffee before bed to relax and unwind. With a strong commitment to both her career and her family, Leslie strives to be a positive role model for others juggling the demands of work, motherhood, and self-care.
Sami Ali
Marketing Advisor
Sami is an accomplished creative director with over a decade of expertise in branding and marketing. Specializing in crafting compelling brand narratives and sustainable ecosystems, he excels as a brand developer. His skills span interactive graphics, design, animation, and branding, delivering exceptional brand experiences that leave a lasting impact.
Abid Ghauri
Finance Assistant
Abid Ghauri, CFA, FMVA, is a finance expert with over eight years of experience in investment banking and corporate finance. His expertise includes due diligence, financial modeling, and transaction advisory, specializing in mergers and acquisitions. Skilled in accounting, taxation, and financial statement preparation, Abid’s experience with a Big Four firm equips him with industry best practices to deliver strategic insights and value-driven solutions for complex financial transactions.
Vivian Alvarado
Regional Supervisor of Dallas/Fort Worth Division
Vivian is a multifamily operations leader with over 15 years of experience managing large-scale communities, multi-site portfolios, and capital improvement projects. She has extensive expertise in property repositioning, renovations, vendor management, budgeting, and operational oversight. Vivian has successfully partnered with ownership groups and asset managers to execute interior and exterior renovation projects, improve asset performance, and drive NOI growth. Known for her strong leadership and team development skills, she is committed to delivering operational excellence, maximizing property value, and creating thriving residential communities.
Noelia Vazquez
Assistant Manager
Noelia serves as the Assistant Manager overseeing all government housing programs within the Housing Department. She is known for her strong organizational skills, deep knowledge of compliance requirements, and commitment to supporting both residents and staff. Noelia ensures that all program operations run smoothly, from application processing to documentation accuracy and resident communication. Her leadership style is hands‑on, supportive, and solutions‑focused, making her a trusted resource for her team and a reliable partner to community agencies. Noelia’s dedication helps maintain high standards across every program she manages.
Leonard Tyson Jr.
Inspection Strategy Coordination Manager
As the Inspection Strategy Coordination Manager, Leonard Tyson Jr. plays a critical role in ensuring every property meets the highest standards of compliance, readiness, and operational excellence. He oversees inspection scheduling, documentation accuracy, and communication between managers, inspectors, and housing partners. With a sharp eye for detail and a proactive approach, he streamlines processes, prevents delays, and ensures all teams are aligned and prepared. His leadership supports smooth operations, stronger partnerships, and consistent success across the portfolio.
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