About

Principal Fund Management

William Oh brings over 20 years of extensive experience in commercial & residential real estate mortgage brokerage, banking and as a private debt fund manager for various family offices. Throughout his career, he has facilitated the origination, acquisition, and servicing of over $180M of asset-backed loans (SBA, auto, real estate). He is a Certified Fund Manager and Certified Private Lender Associate with the American Associate of Private Lenders (AAPL) and is a graduate of Columbia University in the City of New York – Columbia Business School and holds a Masters in Business Administration (MBA).

Our Advantage

Deep Local Market Knowledge & Relationships

Our team brings 40+ years of expertise in real estate investment, finance, and property management. With deep market knowledge and a strong Southern California network, we secure consistent, high-quality loan opportunities with excellent risk-adjusted returns.

Conservative Approach To Underwriting

We mitigate investor risk with due diligence, no external leverage, 60-70% LTV targets, and portfolio-wide risk diversification.

Tech Enabled

Vertically integrated, best-in-class technology enabled platform enabling a streamlined and customized experience from deal flow to funding.

Alignment Of Interest

The fund’s managing principals are personally invested in the fund and are compensated on the fund performance to align interests with our investors.

Transparency

Our fund is managed and audited by third-party administrators and accounting firms. Investors have full visibility into performance and can access investments through our secure online portal.

Why Invest in Private Mortgages?

Real estate serves as collateral, securing loans by mortgage. Borrowers provide 35-50% down for purchases or borrow up to 65% of appraised value in refinancing.

Ready to apply?

With our efficient systems and experienced staff, we ensure a hassle-free financing experience with quick turnarounds.

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Need more help?

We prioritize exceptional customer service, providing personalized support and prompt responses throughout the mortgage process.

CapitalSource™ is a real estate private debt fund manager focused on providing private real estate mortgages to borrowers facing complex challenges.