Hartwell will support the mutual’s intermediary partners across Bath, Bristol, Cardiff and Swindon.
She has previously held BDM and national account manager roles at Northern Rock, Nationwide, The Mortgage Lender (TML), Vida and Foundation.
James O’Reilly, head of intermediary partnerships at Leeds Building Society, said: “We’re pleased to welcome Sarah to the team to help us achieve our purpose of putting homeownership within reach of more people, generation after generation.
“Sarah’s appointment further strengthens our intermediary distribution team and supports our ambitious growth plans.
“Sarah brings a wealth of experience and exciting new ideas to the team. We look forward to introducing her to all of our partners.”
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