The first step to buying a home is qualifying for the loan. This step involves talking to a qualified lender, providing your financial information and determining a what price range and loan amount you can afford according to lender guidelines. Various loans have different prerequisites and guidelines that have to be met. To get some information about buying a home you can visit http://www.chriskopf.com/.
To buy a home with a conventional loan you'll need a min 720 credit score and depending on your finances the down payment can be anywhere from 5% to 20 percent.
If purchasing a duplex triplex or four unit the down payment might be 20% owner occupied and 25% non-owner occupied. Lender guidelines have changed a lot since the market boom. I recall when the property market was going up the creditors were offering 100% financing and you may purchase 4 units with 5% down, that isn't possible anymore unless you are a veteran.
If you would like to buy residential revenue property 2-4 units the down payment is min 20-25% down. If you're an Investor buying Income property 5 units and up you will need to put 30-35% down. These are typical lender guidelines and they vary from lender to lender