About Us

We bridge innovation with experience.

Our team has managed the development and financing of multifamily and commercial real estate totaling over $1 billion in value. Green Mills’ development expertise includes public / private partnerships, public housing redevelopment, mixed-use, transit oriented development (TOD), senior housing, urban-infill and garden apartments. Our financing expertise includes various public and private funding sources, including but not limited to Low Income Housing Tax Credits (LIHTC), Historic Tax Credits (HTC), HUD operating subsidies, taxable and tax-exempt municipal bonds, renewable energy subsidies, CDBG, HOME, Tax Increment Financing (TIF), Housing Authority Capital Funds and conventional debt and equity.




Mitch Rosenstein has an extensive background in financial analysis, development finance procurement and negotiation, asset management and accounting oversight.  Prior to founding Green Mills, Mitch managed the corporate and development finance activities for one of the country’s largest affordable housing developers, where he was responsible for the negotiation and closing of more than 40 transactions with value exceeding $1 billion.  Mitch has successfully closed financing using low-income housing tax credits (LIHTC), taxable and tax-exempt bonds, historic tax credits (HTC), tax increment financing (TIF), corporate lines of credit, conventional debt and equity.

Mitch was appointed to the 2013-2014 Board of Directors for Neighborhood Lending Partners, a consortium bank focused on commercial development and workforce housing finance.  He was also appointed to Broward County’s Affordable Housing Advisory Committee. Mitch is actively involved with various nonprofits, including but not limited to Big Brothers Big Sisters of Greater Miami and New Leaders Council.  Each year, he teaches an affordable housing finance course through the Master’s program at the University of Miami.

Mitch graduated with high honors from the University of Florida’s Warrington College of Business, earning a Bachelors of Science degree in Finance and a Minors degree in Economics.  He lives in South Florida with his wife, son and Old English Sheepdog.


Prior to launching Green Mills, Oscar Sol successfully managed acquisitions, development and construction activities for one of the nation’s largest affordable housing developers and owners.  Oscar has been responsible for the successful completion and occupancy of more than 40 communities with approximately 5,000 apartment units, valued at more than $1 billion.

Oscar has developed award winning public-private partnerships, mixed-use, mixed-income, transit oriented developments (TOD), senior housing, garden apartments and public housing redevelopments.  He’s forged lasting relationships with various non-profits, faith-based institutions, housing authorities, transit agencies, property owners and industry professionals.

Oscar earned a Bachelors of Arts degree in Economics and an Environmental Studies certificate from Florida International University, graduating with honors.  He lives in Miami, Florida with his wife and two children.


“Our experiences with Green Mills have been only positive.  Their team is comprised of true professionals… organized, diligent and transparent.  We look forward to investing in future projects with them.”

“Green Mills’ attention to detail as well as to the community and its needs makes USBCDC proud to have provided the LIHTC equity and construction financing for Forest Ridge. In addition, Green Mills was able to complete construction and lease-up of the project ahead of projections.”

“We are very pleased to have played a small part in the financing of Aida Palms. Mitch and Oscar bring a rare combination of expertise, discipline and commitment to the mission of providing housing for low and moderate income families in Florida.”

“You should be proud of your creation in Forest Ridge as it is the best rental community in Citrus County by a mile. I wanted you to know how much we appreciate the quality, consideration and professionalism you reflected into the community.”