I am sorry to hear of your situation. I'M NOT A LAWYER, nor am I aware of ALL the details of your circumstances; however, my understanding is as follows if a foreclosure takes place on your investment property:
There are a number of ways a lender may or may not be able to go after personal assets via a deficiency judgment after a foreclosure, but it makes a difference on how the property is foreclosed.
For a Non-owner occupied rental where:
1) A lender made a purchase money (recourse) loan, then a deficiency judgment can be attempted if a judicial foreclosure is used. This is not allowed under a trustee sale foreclosure.
2) A Seller financed a purchase money loan, no deficiency judgment can be attempted (non-recourse loan).
3) You as the owner of the property, refinanced the property (recourse loan), then a deficiency judgment can be attempted if a judicial foreclosure is used. This is not allowed under a trustee sale foreclosure.
In any case, your situation should be reviewed by a RE Lawyer to make sure.
Both properties are different from each other, so answer is "No", they will not come after your primary residence. You can short sale your investment property, find a realtor who is experienced in short sale to sell your house. Always consult with your CPA or tax attorney for any tax ramificiation.