Lenders sort second homes into categories using very concrete criteria: is the road plowed in winter, is the foundation permanent, does the water come from a drilled well or the lake, does the heating hold without supervision. Each answer moves the required down payment.
Second homes are the kind of file where lenders diverge most. A property one bank refuses for its seasonal access can be financed elsewhere on reasonable terms. Rather than submitting an application and waiting for the verdict, I first identify the lenders whose criteria fit that property, then compare their terms.