It depends on the state laws regarding collecting a deficiency balance after foreclosure. If the state allows this then this answer would be correct:
the investor is still responsible for paying that mortgage and if he fails to do so, the lender can garnish his wages or sue him for payment.
If they do not then this answer would be correct:
since the property foreclosed, the second mortgage is wiped out
1) State Laws Dictate whether a lender can collect a deficiency balance on a foreclosed home.
2) If Recourse is allowed in the state then yes they can collect and non-recourse means they cannot. (there are requirements)
3) If State Law allows it yes. If not no.
4) Very adversely. It would be difficult for him to obtain real estate financing if he still owes money on a previously foreclosed home.
The mortgage and note would tell you your answer on recourse. But, ultimately the state controls whether it is allowable. Full Recourse, Partial Recourse, or Without Recourse is what verbiage you would be looking for in the 2 documents. These documents are in the closing paperwork and recorded at the courthouse.
Just for the sake of knowledge he may be able to file for bankruptcy protection and wipe out that debt. It is officially unsecured since the collateral has been liquidated.
Also most states have anti-deficiency laws. They
usually only protect the homeowner if it was an owner occupied property. Additionally, only mortgages obtained to purchase the property. So with that being said if this was an investment property he probably owes.