The Yahoo View: An OG among online mortgage lenders, Rocket Mortgage is a good choice for borrowers who appreciate a digital application and loan process — and a 1% down payment option. Rocket Mortgage practically created the online mortgage industry, and it continues to grow by acquiring other mortgage companies and offering unique types of mortgages. So, is Rocket Mortgage the best fit for you? Key benefits Offers a 1% down mortgage called ONE+ that provides a grant of 2% of the home's purchase price ...