Articles

Single-Family Build-to-Rent Starts Remain Robust

As build-to-rent (BTR) demand rises, single-family rental (SFR) development has become more efficient in creating a distinct, community-focused experience for renters. Newly released U.S. Census Bureau data confirms that SFR/BTR development continues to be robust and stable, with its annualized pace of construction in the first quarter of 2025 matching the previous quarter’s tally.

Articles

Top Multifamily Markets for Low Renter Turnover

Tenant retention is a valuable — though sometimes elusive — contributing factor to the strength of a multifamily property. Nationally, 29% of multifamily households signed a third lease for the same unit, according to an analysis of the U.S. Census Bureau’s American Community Survey. Locally, renter turnover was lowest in major coastal markets, like New York City, and highest in transient renter markets, like Charleston, SC.

Current Reports

Small Multifamily Investment Trends Report Q2 2025

While markets undergo rapid recalibration, the small multifamily market’s performance remains strong and stable. Arbor’s Small Multifamily Investment Trends Report Q2 2025, developed in partnership with Chandan Economics, details how the sector’s resilient fundamentals effectively support its growth amid ongoing economic volatility.

Proprietary Preferred Equity behind Conventional Loans

FREDDIE MAC® Proprietary Preferred Equity behind Conventional Loans   Arbor now offers access to proprietary preferred equity behind all Freddie Mac Conventional loans we originate. With Arbor, you can simultaneously secure a senior loan and preferred equity under one roof, streamlining your experience throughout the lifecycle of your loan.

Analysis

Top U.S. Multifamily Rent Growth Markets — Q1 2025

The U.S. multifamily market continued to settle into a more normalized cycle during the first quarter of 2025, as well-positioned investors began to take advantage of new opportunities in an uncertain economic environment.

Analysis

U.S. Multifamily Market Snapshot — May 2025

The U.S. multifamily market continued to settle into a normalized cycle during the first quarter of 2025, despite ongoing uncertainties surrounding the global economy and labor market.

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Home | Management Team | William Foster

William Foster

Managing Director, Tax and Strategic Planning

William Foster is responsible for all of Arbor’s corporate income tax matters, including tax structuring of transactions; management of effective tax rates; general tax planning; assistance with M&A structuring; and oversight for income tax compliance. This entails advising the Chairman and other executives within the Arbor family of legal entities on complex tax structures and strategic planning initiatives to enhance shareholder value.

Mr. Foster comes to Arbor with vast expertise in taxation and building shareholder value. Prior to joining Arbor, he was the Founder and Managing Partner of Foster & Foley LLP, a tax consulting practice advising high-net-worth individuals and multinational companies on diverse consulting strategies to minimize tax liabilities and increase shareholder value. Mr. Foster began his career at Ernst & Young LLP, a global professional services firm.

Mr. Foster received a Bachelor of Science in Accounting from Adelphi University and has been a practicing CPA for more than three decades. He is also an active member of the American Institute of Certified Public Accountants (AICPA) and the New York State Society of CPAs (NYSSCPAs).

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