1) Since you are applying in community college, you should have some strong points when appearing for visa interview like future goal, scholarships, and financial burden (sponsor). Its better to have one more I-20 from different college.
2) Skyline college ,San Bruno located in San Francisco Bay Area, CA is one of the expensive and safest place in USA.
3) Have some good communication with school regarding accomodation, if you do not know anybody in the area.
Good Luck !!!