I see from your zip code that you are in Los Angeles. Most loans in California are non-recourse - which means the only security the lender has on the their loan dollars is the property itself. If your investment property is in California and has a non-recourse loan then your principal residence may be ok. I highly suggest you speak to your lender and an attorney to see what the real situation is. Before losing your investment property - request from the lender a restructuring of the loan. Many lenders are now being cooperative with this workout. Best of luck.