Mark Sembler, a seasoned entrepreneur and real estate professional, is the driving force behind 2nd Wave since its inception in 2017. At 2nd Wave, Mark is deeply involved in all aspects of the business, from underwriting and due diligence to site selection, design, investment analysis, capital structuring, construction, and ongoing operations. His leadership has been instrumental in the creation of over 1,500 units of multifamily housing in Central Florida and Central Tennessee.

Beyond his work at 2nd Wave, Mark serves as the Vice President of Sembler Investments, a family office with a diverse portfolio spanning both commercial real estate and other investments. In his investment capacity at Sembler Investments, Mark has played a key role in the acquisition of over 1,000 units of stabilized multifamily properties throughout the Southeast.

With an MBA in finance and real estate from Northwestern University's Kellogg School of Management and a BA from Duke University, Mark brings a wealth of knowledge and expertise to the industry.

Stephen oversees the day-to-day operations of 2nd Wave. He joined 2nd Wave at the beginning of 2020 as the Director of acquisitions where he lead the team responsible for the identification, evaluation, and negotiation of all site selections and land acquisitions. Before that, he led several successful sales teams in the professional sports industry. Stephen earned his bachelor’s degree from Florida State University, master’s degree from the University of Florida, and MBA from the Odette School of Business at the University of Windsor, Ontario.

Bryan Castillo is a seasoned commercial real estate professional, entrusted with leading all multifamily investment decisions on behalf of the Sembler family office. With fifteen years of experience, Bryan manages a wide range of investment responsibilities from development to acquisitions to portfolio management. He oversees underwriting, asset management, guides liquidity events and exit strategies, ensuring optimal performance and alignment with strategic objectives. Bryan's influence extends to his involvement as a key member of investment committees at all commercial real estate portfolio companies, where his institutional experience and strategic acumen drive informed decision-making processes focused on maximizing risk-adjusted returns.

At Sembler Investments, Bryan is instrumental in shaping the strategic direction of commercial real estate investment strategy. He is entrusted with overseeing all aspects of real estate project financings, including debt and equity structures, across various stages of development, acquisition, and repositioning. Furthermore, Bryan fosters and nurtures crucial relationships with capital markets and investment sales intermediaries, facilitating seamless collaboration and maximizing opportunities.

Bryan's leadership is evidenced by his integral role in the formation of new commercial real estate ventures, including the successful establishment of ventures such as Argyle & Sembler Investments Real Estate Partners. His forward-thinking approach and ability to identify and capitalize on emerging opportunities highlight his invaluable contributions to the industry.

Lauren is an accomplished professional in commercial real estate, with a wealth of transactional experience in managing a diverse portfolio of transactions encompassing acquisitions, dispositions, development, and financings. With a comprehensive understanding of the industry landscape, Lauren is entrusted with the critical responsibilities of overseeing due diligence processes, navigating complex legal and strategic issues, and spearheading our most challenging tasks with precision and expertise.

As a key member of the executive team, Lauren assumes a multifaceted role, where she not only oversees the strategy and execution of corporate goals but also serves as a linchpin for complex legal and strategic decision-making across our commercial real estate platform. Her contributions extend beyond internal operations; as a trusted member of the investment committee, Lauren wields significant influence over investment strategy and decisions, leveraging her expertise to drive optimal outcomes.

In addition to her executive responsibilities, Lauren plays a pivotal role in managing and coordinating outside counsel, ensuring seamless collaboration and alignment of legal strategies with organizational objectives. Her collaborative approach and unwavering dedication to excellence are instrumental in mitigating risks and maximizing opportunities in an ever-evolving landscape.

Lauren received her BA from Duke University in 2007 and her JD from Northwestern in 2011.

Ryan oversees accounting efforts for current and prospective development projects for 2nd Wave Development. He has more than 10 years of accounting experience for private real estate development and construction companies in the North and South-east, managing project budgets, financial reporting, lender compliance and internal controls. Ryan earned his bachelor’s and master’s degrees in Accounting from the University of South Florida.

Tristan is a dynamic leader in our Development Department, overseeing the development and construction teams responsible for the successful execution of our projects. With a strong foundation in finance and acquisitions at 2nd Wave, he has rapidly advanced his focus to development, where he now plays a pivotal role in guiding projects through their full life cycle.

In his current position, Tristan collaborates closely with project managers, ensuring seamless integration between acquisition efforts, financial analysis, due diligence, entitlement efforts, construction, and leasing phases. His comprehensive approach not only drives project excellence but also reinforces the strategic objectives of our organization.

Tristan's academic background—earning dual bachelor's degrees in Finance and Real Estate from Florida State University—has equipped him with the analytical and strategic acumen necessary to excel in today’s complex real estate landscape. Joining 2nd Wave in 2018, he has consistently demonstrated an ability to leverage his expertise and intuition, fostering strong internal and external relationships and delivering measurable results across every stage of development.

With nearly 12 years of capital markets experience, Burke is responsible for arranging asset-level and corporate debt for 2nd Wave Development. Burke previously held a leadership role as Director of Capital Markets for Swiss investment manager Stoneweg, where he closed over $1bn in loans. Prior to moving to Tampa, Burke was an integral member of the Capital Markets team at Chicago-based Heitman Capital Management which executed over $5bn in financing volume annually across multiple capital sources, property types, and risk strategies. Burke began his career with PGIM Real Estate and graduated from UNC Chapel Hill’s Kenan-Flagler Business school with a BSBA.

Brooke oversees all construction operations for 2nd Wave Development. She has more than 20 years of Subcontractor, General Contractor and Development experience for private real estate development and construction companies in Florida. She specializes in large-scale residential and commercial construction. She leads concept budgeting, design coordination, pre-construction, contract implementation and day to day activities of the General Contractor and vendor partners 2nd Wave works with. Brooke earned her bachelor’s degree from The University of Tampa.

Katie manages 2nd Wave’s portfolio of multi-family assets through lease-up and stabilization to disposition, ensuring optimal performance and profitability. This position blends analytical skills, financial acumen, and strategic thinking to effectively manage each asset. Beyond financial management and analysis, Katie also plays a key role in building and maintaining strong relationships with third-party property management teams, placing emphasis on efficient and proactive communication. Katie graduated from Florida State University with a Bachelor’s and Master’s degree in Finance.

As Senior Finance Analyst at 2nd Wave Development, Kevin brings more than six years of expertise in the multifamily sector. He specializes in underwriting, market analysis, and debt and equity structuring to drive performance and strategic success. Drawing on his comprehensive institutional knowledge and strategic approach, Kevin's expertise lies in crafting investment strategies that yield superior risk-adjusted returns for investors.

Before joining 2nd Wave, Kevin was a Senior Financial Analyst at an international commercial real estate firm and led capital-raising initiatives for a private Real Estate Investment Trust (REIT) based in San Diego, California. He holds a BBA in Real Estate from the University of Wisconsin-Madison.

Kiara plays a vital role in the company’s day-to-day operations, as the lead manager for all of 2nd Wave’s administrative matters. Her previous experience in the construction industry, working as an administrator for several national general contractors, makes Kiara a true asset and dynamic member of the team. She holds OSHA 10 and Notary certifications, and is fluent in Spanish and Catalan having grown up in Barcelona, Spain.

Lisa has over 16 years of public accounting experience with more than 10 years concentrated within the private real estate industry. She then made the transition from public accounting into real estate outsourced accounting services. Her industry experience includes commercial, residential, and development companies throughout the U.S. but with a high concentration in the Northeast. Her experience includes financial reporting, fund accounting, and internal controls. Lisa earned her bachelor’s in accounting degree from the University of Central Florida and her master's degrees in accounting from Florida Atlantic University.

As a Senior Accountant at 2nd Wave Development, Daniel Marthaler excels in crafting detailed financial reports for multiple properties, leveraging his extensive academic background with Bachelor's and Master's degrees from the University of South Florida. With a keen eye for accuracy and a dedication to excellence, Dan ensures the financial health and success of diverse real estate portfolios. His expertise and commitment make him an indispensable member of the team, driving optimal performance and profitability across the firm's ventures.

Marc, one of 2nd Wave's Senior Accountants, flourishes in corporate accounting, financial reporting, and job cost analysis, providing sound and actionable insights that drive organizational performance and
success. With a meticulous attention to detail and a strategic mindset, he ensures that
all aspects of the accounting process are aligned with the organization's broader goals.
Leveraging experience in the multi-family sector, Marc possesses an exceptional ability
to analyze and process intricate financial data. His contributions have led to significant
portfolio growth, cost savings, and enhancing the financial health of distinct multi-family
investments.
Marc earned two bachelor’s degrees from Indiana University – one in Business and
another in Accounting.