The SF mayor's office of housing has a down payment assistance program and there are grants available if you are a teacher, fireman, police officer, etc. With all that assistance you should be able to keep your out of pocket expenses very low indeed. However, there are lessons to be learned since the mortgage meltdown and the recession; namely, put some cash in the deal. A good down payment of 20% to 30% is recommend. Do you have job stability? Without it, getting into a home with little or nothing down is not recommended. If you would like to consult with me so you can make a decision, give me a call.