GuardHill Financial LLC | 2,614 followers on LinkedIn. America’s Trusted Mortgage Experts. One of the nation’s leading, privately held mortgage specialists. | Established in 1992, GuardHill Financial LLC is a New York City-based mortgage banker and brokerage company originating approximately $1 Billion annually. Focusing exclusively on mortgage financing, GuardHill strives to offer the best combination of rates, service, and product mix. We are leading mortgage experts intent on building lifelong client relationships.