We believe structure is stewardship, and strong systems help mission-driven leaders sustain their impact.

About Cornerstone

Building Strong Organizations Through Systems, Infrastructure & Strategic Leadership

Cornerstone Strategy Group partners with mission-driven organizations to develop organizational infrastructure, build sustainable systems, and create the operational excellence needed for lasting community impact.

LaTosha Street, Founder & Chief Strategist

LaTosha brings hands-on experience working inside nonprofit and community organizations, identifying operational gaps, and building systems that enable growth. Her background spans multi-million-dollar public and state-funded initiatives throughout Chicago, where she led infrastructure development, managed complex implementations, and coached organizational leaders through strategic transformation.

She founded Cornerstone on a simple truth: strong organizational structure creates the foundation for growth, funding readiness, and lasting impact. LaTosha partners with mission-driven leaders ready to build with intention, strategy, and accountability.

Warm, inclusive leadership photo of diverse nonprofit leaders in discussion around a conference table

Our Expertise

What We Build With Our Clients

We help mission-driven organizations identify operational gaps, align vision with systems and execution, and build infrastructure for sustainable growth.

🏗️

Capacity Building

Assess your organizational maturity and build scalable infrastructure for sustainable growth and impact.

🏛️

Organizational Structure

Design clear governance, roles, and operational frameworks that reduce confusion and empower teams.

📊

Strategic Planning

Develop clear vision, actionable strategies, and roadmaps aligned with your mission and market.

Compliance & Systems

Navigate regulatory requirements, establish compliance frameworks, and implement operational systems.

👑

Leadership Development

Coach executive directors, boards, and emerging leaders to maximize their strategic impact.

🤝

Community Impact

Develop engagement strategies and partnerships that deepen your community reach and sustained change.

How We Work

Strategic Partnership Grounded in Real Experience

Understand Your Reality

We start by deeply understanding your organization's current state, challenges, and aspirations.

Design Strategic Frameworks

Together, we create operational roadmaps and structures aligned with your mission.

Implement & Support

We help you implement systems and build leadership capacity to execute strategy with confidence.

Professional workshop or training session with nonprofit leaders learning in structured boardroom environment

Why Organizations Choose Cornerstone

  • Firsthand Experience in nonprofit operations
  • Proven, Customized approaches—not templates
  • Mission-Centered partnership
  • Long-Term Focus on your growth

Track Record

Real Impact in Real Communities

LaTosha has supported organizations across Chicago, contributed to multi-million-dollar community initiatives, and worked alongside nonprofit and community leaders building sustainable impact.

50+

Organizations

Supported through capacity building

Multi-Million

Community Initiatives

Contributed to coordination and implementation

200+

Leaders

Worked alongside through coaching and training

"Cornerstone brought clarity to our strategy, professionalism to our operations, and confidence to our leadership team. We've scaled our impact because we now have a stronger foundation."

— Executive Director, Community-Based Organization

Our Foundation

Values That Guide Our Work

Integrity & Authenticity

Transparent, honest guidance grounded in your reality. No shortcuts, no templates that don't fit.

Excellence & Rigor

Strategic frameworks and thoughtful execution. Your success built on solid ground, not assumptions.

Community & Collaboration

True partners in your mission. Change happens through listening and shared commitment.

Long-Term Focus

We invest in sustainable capacity, not quick wins. Our goal is your thriving organization for decades to come.

Leadership & Experience

LaTosha's Background & Expertise

With years of hands-on experience in nonprofit operations, community development, and organizational leadership, LaTosha brings strategic rigor and real-world understanding to every engagement.

Experience & Background

LaTosha has supported complex organizations throughout Chicago across violence prevention, workforce development, youth programming, and community engagement. Her experience spans multi-million-dollar public and state-funded initiatives, where she coordinated implementation, ensured compliance, and developed operational systems.

Known for her ability to bring structure and clarity to organizations, LaTosha combines professional rigor with deep community-centered thinking and a commitment to authentic, lasting impact.

Leadership Philosophy

LaTosha believes strong organizations are built through structure, strategy, and accountability—not just funding. She partners with leaders to build the infrastructure and leadership necessary to operate effectively and secure funding with confidence.

Professional executive consultant in business attire, confident and approachable

Core Expertise

  • Organizational development & capacity building
  • Grant readiness & compliance strategy
  • Strategic planning & program development
  • Operational systems & workflow design
  • Leadership coaching & board development
  • Community engagement & partnerships

Our Team

Meet the Cornerstone Leadership

Diverse expertise, deep nonprofit experience, and shared commitment to building strong organizations.

Kenya Avery, Lead Organizational Development Strategist

Kenya Avery

Lead Organizational Development Strategist

Kenya brings deep expertise in organizational development, capacity building, and strategic planning. Passionate about empowering mission-driven organizations to build sustainable systems and unlock growth.

Visit Kenya's Website
LaTosha Street, Founder

LaTosha Street

Founder & Chief Strategist

Capacity-building strategist with hands-on experience supporting nonprofits and mission-driven organizations across Chicago. Developed operational systems and strategic frameworks for lasting organizational impact.

Learn More
LaTasha Parham, Operations Manager

LaTasha Parham

Operations Manager

Operational leader who ensures smooth execution and excellence across all initiatives. Manages logistics, compliance, and team coordination to deliver high-quality client outcomes.

Get in Touch

Ready to Build Sustainable Systems & Organizational Infrastructure?

Let's discuss how capacity building, strategic planning, operational excellence, and strong leadership can strengthen your organization and advance your mission for sustainable impact.