Investment-property closings stack lender, title, transfer, and inspection charges on top of the purchase price — and several of the items price higher than on owner-occupied files.
Borrowing against a primary residence to fund a rental down payment is a leverage stack, and the two instruments differ in rate structure, draw mechanics, and what happens when markets turn.
A fixed-rate loan is insurance against payment shock priced into the rate; an adjustable-rate mortgage sells that insurance back and pays the investor for the risk.
On a construction-to-permanent loan, the borrower can finance the interest due during the build into the loan itself — an interest reserve that converts months of payments into loan balance.
Once a property crosses five units or a borrower crosses the agencies' limits, financing moves from the conforming market to portfolio lenders — with different terms, timelines, and documents.