At a glance
- Jackson joined Castlelake in 2019 and runs a book spanning residential transitional loans, non-qualified mortgages, prime jumbo loans, mortgage servicing rights and small-balance multifamily loans.
- For allocators underwriting Castlelake, the promotions put partner titles on Jackson's residential mortgage desk and Sylvester's client coverage—the two functions that decide what gets lent against and how strategies are explained.
- Sylvester, who also joined in 2019, leads the firm's global client management strategy.
Castlelake named Luke Jackson and Betsy Sylvester partners on Oct. 13, promoting its residential mortgage finance head and global client-management chief at the $40 billion asset-based private credit firm, Alternative Credit Investor reported.
Jackson joined Castlelake in 2019 and runs a book spanning residential transitional loans, non-qualified mortgages, prime jumbo loans, mortgage servicing rights and small-balance multifamily loans.
For allocators underwriting Castlelake, the promotions put partner titles on Jackson's residential mortgage desk and Sylvester's client coverage—the two functions that decide what gets lent against and how strategies are explained.
Sylvester, who also joined in 2019, leads the firm's global client management strategy. The report describes her role, partner capital formation, as covering client experience and strategic relationships. Before Castlelake, she held client advisory and private wealth roles in investment management and investment banking, and began her career in the nonprofit sector.
Reported by the Private Credit & BDCs desk from Alternative Credit Investor and Form ADV (SEC IAPD), filed 2026-03-27. Published . Updated Oct 25, 2026 · 7:06 p.m. ET. Corrections