Florida Keys
Mortgage Guidance for Marathon
Austin Edwards, Mortgage Loan Originator, NMLS #2639747 | Ocean Blue Lending
Marathon is the largest community in the Middle Keys, serving as a commercial hub with shopping, dining, medical facilities, and the Marathon International Airport. The market features condominiums, townhomes, single-family homes, and waterfront properties.
Key areas include Sombrero Beach, Coco Plum, and Key Colony Beach. Each area has different property types, price points, and financing considerations. Waterfront properties in Marathon frequently exceed conforming loan limits.
Waterfront Appraisal
Marathon waterfront properties require appraisals that account for water access, dockage, and comparable waterfront sales. Appraisal complexity can affect the financing timeline. Properties with unique features may require additional comparable sales analysis.
Short-Term Rentals
Marathon has specific regulations regarding short-term vacation rentals. Buyers should verify local rental restrictions before purchasing a property for vacation rental use. Financing options depend on how the property will be classified (second home vs. investment property).
Condos and Townhomes
Marathon has numerous condo and townhome communities. Financing depends on the project meeting warrantability requirements, including reserves, insurance, owner-occupancy ratios, and commercial space limits. See the condo financing guide.
Jumbo vs. Conforming
The conforming loan limit for a one-unit property is $832,750 for 2026. Many Marathon waterfront properties exceed this limit. Jumbo loans are available for higher-value properties with different rate and down payment requirements.
Flood and Wind Insurance
Flood insurance is required for most Marathon properties in designated flood zones. Windstorm coverage is also important. These costs add significantly to the monthly payment and should be estimated before making an offer.
Depending on the borrower, property, occupancy, and complete loan scenario, available options may include Marathon properties, including conventional, FHA, VA, jumbo, and non-QM programs. Condo financing, second home loans, and investment property financing are all relevant here.