The Ridgehouse Team

A vision requires a team to unite in purpose and create actionable strategies toward success. Each Ridgehouse Companies team member works to align our resources, collaborate with industry partners and manage projects from start to finish. We remain dynamic and forward-thinking in construction, development, investment and acquisition. 

Michael J. Sansone

Co-Founder, Managing Principal

Michael J. Sansone is co-founder and managing principal of Ridgehouse Companies. He is a St. Louis native and grew up immersed in the real estate industry. Now, Sansone has over a decade of finance, asset management and real estate investment and development experience.

Sansone leads the expansion of Ridgehouse Companies, creating strategic plans and maintaining oversight over all aspects of the Ridgehouse Platform. He earned his BS/BA from the University of Missouri, Columbia and his MBA from Webster University in St. Louis.

Matthew E. Walla

Co-Founder, Principal

Matthew E. Walla is co-founder and principal of Ridgehouse Companies. Walla is a St. Louis native and has worked for over a decade in the finance and accounting sectors of property development. Walla oversees the day-to-day management of financial operations, asset management and capital and debt financing for the Ridgehouse Companies portfolio.

Prior to founding Ridgehouse, Walla was the Chief Investment Officer of Sangita Capital Partners. Walla earned his BSAcc/MAcc in Accountancy from the University of Missouri, Columbia and his MBA from Washington University in St. Louis.

Walter Olszewski

President of Ridgehouse Construction

Walter Olszewski has been developing, constructing and supervising projects in property development industries for over 20 years. He has been responsible for contractors’ daily operations, controlling budgets, negotiating subcontracts and working with local and state agencies. He provides day-to-day communication with the project team and owners to ensure jobs remain on schedule and within budget.

Throughout his multifamily development career, Olszewski has completed construction of 16 communities in seven states totaling more than 3,100 units and over $830,000,000 in projects. Olszewski attended both Saint Louis University and University of Missouri, St. Louis and holds a Journey Level certificate in Carpentry.

Kevin O'Keefe

Kevin O’Keefe

Chief Investment Officer

Kevin O’Keefe is Ridgehouse’s Chief Investment Officer. In this role, he oversees financial modeling, sourcing new investment opportunities, asset management and capital partner relations. O’Keefe holds a strong background in financial strategy, investment analysis and capital management — making him integral to Ridgehouse’s growth and success. 

O’Keefe previously served as the Chief Financial Officer of Saint Louis Bank, where he managed financial strategy and operations. Prior to that, he spent two decades as a buy-side research investment analyst, specializing in financial services at several long-only funds and hedge funds. O’Keefe received two bachelor’s degrees from Georgetown University. 

Kris Skelton

Regional Vice President of Construction

projects across the firm’s eastern region from early planning and preconstruction through certificate of occupancy. With more than 25 years of experience spanning hands-on fieldwork, project management, and leadership across commercial, multifamily, and single-family construction, Skelton brings a practical, solutions-oriented perspective to every phase of development. 

Recognized for his collaborative approach and clear communication, he builds strong relationships with teams, partners, and stakeholders — helping drive projects forward with alignment, efficiency, and trust.

Matt Limpert

Regional Vice President of Construction

Matt Limpert is Regional Vice President for Ridgehouse Construction, providing comprehensive oversight of projects across the firm’s western region. He leads developments from initial planning and preconstruction through certificate of occupancy, maintaining disciplined control of schedules, budgets, and execution at every stage. Known for his proactive leadership and meticulous attention to detail, Limpert anticipates project needs, resolves challenges early, and ensures Ridgehouse standards are upheld across teams and sites.

He earned his bachelor’s degree from the University of Missouri–St. Louis and holds NASCLA and ICC building certifications.

Emily Bullock

Emily Bullock

Director of Finance

As Director of Finance, Emily oversees company and property financial performance, leading budgeting, forecasting, and financial reporting across the Ridgehouse portfolio. She brings deep expertise in disciplined budgeting, process improvements, and operational insight that supports accurate, efficient decision-making. Emily partners closely with leadership and project teams to strengthen financial controls, enhance performance visibility, and safeguard the integrity of Ridgehouse’s financial operations.

She holds a bachelor’s degree from Eastern University and an MBA from Florida Gulf Coast University.

Anthony Kifue

Anthony Kifue

Development Finance Manager

As development finance manager, Anthony Kifue immerses himself in financial modeling, asset management, underwriting, due diligence and market research. His work ensures top-notch portfolio performance for Ridgehouse, empowering value generation and net positive returns for stakeholders. 

Previously, Kifue gained management consulting and private equity experience across three continents, including Africa, the Middle East and the United States. His global perspective lends itself well to optimizing Ridgehouse’s strategies and processes. Kifue holds an MBA in Finance from Washington University in St. Louis and a master’s in project management from Saint Louis University.

Michelle Galloway

Michele Galloway

Project Accountant

As a project accountant, Michele Galloway is responsible for the accounting aspects of Ridgehouse’s multifamily projects. She processes A/P, A/R, tracking insurance, lien waivers and more. Additionally, she supports the Ridgehouse Construction team by monitoring project progress, investigating variances, approving expenses and ensuring billing issuances and payment collections. 

On the office side, Galloway completes bank reconciliations, payables, journal entries and deposits and assists with month-end details. Since receiving an associate degree from St. Louis Community College, she has gleaned a wealth of knowledge from the Ridgehouse team to further her professional growth.

Jeremy Axtetter

Project Manager

As Project Manager at Ridgehouse, Jeremy Axtetter oversees multifamily construction projects in Knoxville and Charlotte. He leads projects from pre-construction through completion, managing budgets, schedules, and on-site teams to ensure efficient execution and high-quality delivery. 

Known for his strong work ethic, attention to detail, and collaborative leadership style, Axtetter effectively balances multiple priorities while keeping projects on track and aligned with Ridgehouse standards.

Keith Townsend

Superintendent

As Superintendent at Ridgehouse, Keith Townsend brings extensive industry experience to the field. He leads daily on-site operations and currently oversees construction of the firm’s Lake St. Louis project. Townsend manages subcontractors, coordinates schedules, and ensures work is executed safely, efficiently, and to Ridgehouse quality standards. 

His hands-on leadership and deep construction expertise keep projects progressing smoothly from planning through completion.

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Christian Paolinetti

Superintendent

Christian Paolinetti serves as Superintendent for Renza, Ridgehouse’s multifamily development in Charlotte. He oversees all aspects of the construction process, ensuring efficiency, quality, and timely delivery. Prior to leading Renza, Paolinetti played a key role in the successful completion of Somerset, the firm’s multifamily project in Glendale, Arizona, where he managed daily on-site operations. 

His experience, steady leadership, and strategic, proactive thinking position Ridgehouse projects for continued success.

 

 

Jim Mathes

Jim Mathes

Superintendent

Jim Mathes brings more than 25 years of construction management experience spanning residential, restaurant, hotel, and multifamily developments, with a strong concentration throughout the Southeast. He leads day-to-day site operations for Ridgehouse’s Knoxville project, The Aster, overseeing subcontractor coordination, schedule execution, budget management, and adherence to safety and quality standards. 

With steady leadership and deep field expertise, Mathes helps ensure The Aster is delivered on time and to Ridgehouse Construction’s high standards.