How Much Down For Investment Property Second Home Versus investment property mortgage But what if you get a second home mortgage? Does it matter what you use. (This is something to consider for anyone trying to finance a seven-figure property. See Jumbo Vs. Conventional Mortgages:.Business Property Mortgage 8 Questions Every Home Buyer Needs to Ask Before Selecting a Mortgage Lender – So yeah-you’ll want to set yourself up for success as a first order of business. a lender is not likely to give you a mortgage for this property, unless you agree to put more money down.