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Castlelake buys majority stake in US residential lending platforms

Reported by Alternative Credit Investor
Apr 23, 2026· 2 min read
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Key Takeaways
  • • Castlelake acquired a majority ownership stake in Resfin Partners, which operates Eastview (a U.S. mortgage correspondent business) and Lendmarq (a residential investment lender), expanding its in-house credit origination capabilities in residential mortgage finance.
  • • Over a multi-year relationship preceding the acquisition, Castlelake sourced more than 4,000 senior structured loans exceeding $2 billion in funded volume from the platforms, including residential transition loans (RTLs), single-family residential/DSCR loans, ground-up construction loans, and multifamily bridge loans.
  • • The acquisition aligns with Castlelake's strategic approach of acquiring majority stakes in high-quality sourcing platforms to enhance access to investment opportunities, improve risk control, and support disciplined capital deployment across its funds and vehicles.
  • • Castlelake currently holds majority or significant ownership stakes in five sourcing platforms total, including four additional platforms across specialty finance and aviation finance beyond the Resfin Partners acquisition.
  • • Lucas Jackson, Head of North American Residential Mortgage Finance at Castlelake, emphasized that the investment deepens the relationship with the platforms "built on a strict, shared focus on asset quality and value," with expectations to support continued growth and expansion of residential lending capabilities.
Summary
Castlelake, L.P., a global alternative investment firm specializing in asset-based private credit, announced the acquisition of a majority ownership stake in Resfin Partners, the holding company for Eastview and Lendmarq, two established U.S. residential lending platforms. The transaction represents a strategic consolidation of a relationship that has generated substantial deal flow for Castlelake's investment vehicles.

The acquisition follows an extended period of successful collaboration between Castlelake and the two platforms. During this multi-year relationship, Castlelake sourced more than 4,000 senior structured loans with funded volume exceeding $2 billion. The loan portfolio has spanned diverse residential credit categories, including residential transition loans, single-family residential and debt service coverage ratio (DSCR) loans, ground-up construction loans, and multifamily bridge loans. This extensive track record of asset sourcing and performance demonstrates both the quality of deal flow from the platforms and Castlelake's commitment to the residential mortgage finance sector.

The transaction reflects Castlelake's broader investment thesis of acquiring controlling interests in sourcing platforms that provide access to high-quality investment opportunities while enabling enhanced risk oversight and disciplined capital deployment. Castlelake currently maintains majority or significant ownership positions in five sourcing platforms, with the Resfin Partners acquisition complementing existing stakes in specialty finance and aviation finance platforms. As majority shareholder, Castlelake intends to actively support the continued growth and operational expansion of Eastview and Lendmarq's residential lending capabilities, positioning the combined entity to increase origination capacity and serve Castlelake's expanding fund vehicles with direct access to residential credit opportunities.

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Sources

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Alternative Credit Investor Castlelake buys majority stake in US residential lending platforms