I just recently moved to San Diego from Los Angeles with my son . My ex boyfriend of 7 . 5 years ( son's father ) still lives in Los Angeles . Do I need to be in San Diego county for a certain amount of time before I can file ? I have heard mixed things and can't seem to find the answer on line . In my case , I physically moved out of the house we lived in together Dec . 14th . I have no support in Los Angeles , and have family support in San Diego so that is why I moved here .