Commercially zoned legal non-conforming residential home

[Ronnie Giery]

I am looking at a property in the South Bay CA near Los Angeles that is a commercially zoned, legal non-conforming residential 2 bed 1 bath house. There is a house to the West of the property and on the East is an empty lot. I think the house next door is zoned residential. I called the city and they said that there is pretty much no way to get it zoned residential. Does anyone have any experience on getting this zoning changed? Is there any loop hole I can work to get the city to change it to residential?