milestone housing


Milestone Housing Group, LLC., specializes in the development of affordable housing throughout California.  Milestone’s principals have extensive experience in all aspects of affordable housing with collectively over 40 years’ experience.  Throughout their careers they have generated numerous successful and award-winning communities.

Our Mission

Milestone Housing’s mission is to generate and maintain high quality, safe and affordable housing. Creating housing stability establishes a strong foundation for our residents, enabling them to focus on bettering their lives.

Our Vision

Milestone strives to design communities that meet the unique needs of each population served. We produce housing for individuals and families with a variety of needs, including permanent housing for the homeless, veterans and individuals with disabilities, along with traditional family and senior housing.

Our Partners

Milestone works with the best development team members in the industry, whether it be creative architects, practical attorneys, reliable general contractors or financially sound lenders and tax credit investors.

Our Strategy

Milestone recognizes that all new development must fit in well with existing uses. We are sensitive to the communities we enter and look to build housing that improves neighborhoods. We build high quality, attractive and sustainable communities.

milestone housing


Marcus Griffin

Marcus Griffin

Principal and Chief Financial Officer

Marcus Griffin is a principal at Milestone Housing Group, LLC, an affordable housing development company. With a 25+ year career in the affordable housing tax credit industry, Marcus has held positions at CPA firms such as Novogradac and Company and Cohn Reznick. He has also served as a CFO for various organizations, including developers, a syndicator, and a financial consulting firm. Marcus has designed and closed numerous innovative financing transactions using local, state, and federal resources.

Steve Massei

Principal and Director of Construction

Steve Massei brings over 20 years of experience in constructing multi-family and luxury single-family homes. As Senior Vice President of Construction for a top California multifamily general contracting firm, he managed a large staff and oversaw all field activities for over a decade. Steve and his team have built 3000+ apartment units and a vast portfolio of luxury custom and high-density production single-family homes.

Stephanie Massei


Stephanie serves as Milestone’s Director of Asset Management. In this role she oversees the operations of Milestone’s portfolio of properties. She directs the architects and management firms on interior design decisions, oversees lease-up activities and leads Milestone’s marketing efforts. She also manages human resources and IT. Stephanie has significant experience in the real estate industry and also serves similar functions for Milestone’s sister company, Massei Construction, a California licensed general contractor specializing in single family home development.

Zen Juanillo


Zen Juanillo is responsible for accounting, vendor relations, and corporate compliance. With extensive experience in the construction industry, Zen is knowledgeable about the latest software platforms that automate traditional accounting, payment, and compliance functions. Zen also serves Milestone’s sister company, Milestone Housing Group LLC, in a similar capacity.

Shane Hariz

Shane Hariz

Principal and Director
of Acquisitions

Shane Hariz is a licensed real estate broker who identifies acquisition opportunities and manages entitlement activities. As a principal, he participates in key decision-making and risk assessment evaluations, helping to shape Milestone Construction Group’s future.

Jae Mo Koo

Acquisitions Manager

Jae is responsible for sourcing affordable housing development opportunities throughout Southern California.  In this role, he builds new relationships in the affordable housing industry and works closely with public agencies, development partners and other team members.  Jae also has project management responsibilities with entitlements and due diligence coordination.

Sam Hariz


Sam has enjoyed an extensive, diverse career in commercial real estate. Over the last 30 years, he has redeveloped numerous shopping centers, developed multi-family projects and single family residences along with numerous other business ventures.  Sam, as a key principal at Milestone, participates in acquisition strategies, business processes and assists in crafting Milestone’s corporate strategy. 

And the rest of the team, partners, staff and everyone who makes Milestone Housing Group operate lean & efficient to ultimately serve everyone in the community where we develop our projects. All starting with a central goal of providing hope, equality and opportunity.

Milestone Housing Group

Building Hope Through Housing

Contact Us

51 University Ave., Ste D, Los Gatos, CA 95030