Arboretum Mortgage goal is to find the one loan that best suits clients’ circumstances. To that end, their Loan Originators offer expertise in a full range of financing plans, from first-time home buyer programs to jumbo loans of up to $5,000,000. They pride ourselves on their one-to-one service, market knowledge and quick closing—typically 3-4 weeks, often as little as two. Arboretum Mortgage specialize in Seattle, WA. commercial construction loans, Seattle, WA. Bridge Loans, Seattle, WA. residential home bridge loans.