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Sefira Capital - Miami Team



Founder and Managing Partner of SEFIRA CAPITAL

His role will include Finance, Accounting, Compliance, Legal and Investor Relations.

Prior to forming Sefira, Aby was a founder and managing principal of Elion Partners, a private Real Estate fund based on Aventura, Florida that invests in commercial Real Estate across the United States. Aby was responsible for Elion’s finances and management. Before joining Elion, Aby worked at Acceso Partners (Beacon Investments Group), a Real Estate fund, where he focused on the acquisition and management of Florida properties. Prior to Acceso, Aby was a principal of Grupo Sindicato Pesquero del Peru, the world’s largest fishmeal company.

Aby has a Bachelor in Business Administration from the Universidad de Lima and an MBA from the University of California, Berkeley.


Founder and Managing Partner of SEFIRA CAPITAL

His main role is to lead the firm’s Acquisitions and/or Joint Ventures, oversee the Financial underwriting and the execution of each investment with the goal of maximizing returns. He´s also responsible for the fundraising efforts.

Prior to forming Sefira, Mijael played many roles including CFO and CEO in his own company TOOLCRAFT from 2000 to 2015. The company is a leading player in the Hardware Tools Market in Latin America and sells its products in more than 20 countries. Prior to this, Mr. Attias was a Senior Consultant for KPMG Financial Advisory Services from 1998 to 2000, and was involved in Mergers and Acquisitions, Business Valuations and Restructurings for over 35 companies.

Mijael is a CPA from Instituto Tecnológico y de Estudios Superiores de Monterrey and an MBA from IPADE Business School. He serves in the Scheck Hillel Board of Advisors and is the Vice President of Skylake Synagogue.


Senior Commercial Asset Manager

Mr. Callejas joined Sefira Capital in 2017 bringing 12 years of industry experience and extensive knowledge focused in investment, asset management, real estate development, value enhancement and asset disposition.

Prior to joining Sefira, Mr. Callejas worked for Torchlight Investors where his role as an asset manager involved him in the stabilization and disposition of assets exceeding $300MM in value. Core properties included multifamily, retail, office, industrial and hospitality. Mr. Callejas holds a Bachelor of Arts in English literature from the University of Havana and a Master’s Degree in Real Estate Development from Nova Southeastern University. He is also a licensed real estate broker in the State of Florida.


Office Manager 

Tatiana Castañeda is the office manager at Sefira Capital, responsible for all general office operations and overseeing the company’s marketing programs. Tatiana started her career as a sales assistant and customer service representative for Trend USA, where she implemented new strategies to increase sales and worked closely with agents to forecast changes, to ensure product availability.

In 2013, she joined Akkar Group as marketing manager, where she managed day-to-day operations of the marketing team while creating and executing marketing plans for Latin America and the United States. Tatiana later became the art director for Y-Not Design & Manufacturing. In this role, she assisted with product and graphic design for Carnival Cruise Line, Norwegian Cruise Line, Royal Caribbean International and Hilton International. Tatiana received a bachelor’s degree in fine arts from Miami International University of Arts & Design.


Assistant Asset Manager

Maurizio Piedra joined Sefira Capital in 2018 and is responsible for analyzing the market conditions and performance of the properties using financial models, while assisting the senior manager in the negotiation process.  This includes working with different contractors and vendors, on behalf of the company’s existing portfolio of properties which are under development.

Prior to joining Sefira Capital, Maurizio served as a financial analyst at Marcus & Millichap, where he prepared the financial underwriting for hospitality deals in the southeast market, identified value add opportunities for investors, and managed transactions under strict deadlines. He joins Sefira Capital with experience in investment sales, and asset management of hospitality, retail, and multifamily projects.

Maurizio received a Bachelor of Science degree in economics from the University of Central Florida.