My question involves a mortgage in the state of: California

I have a 2nd mortgage that I subsequently took after the house was purchased. We have defaulted on the payment since 2008. We have since done a loan mod on our 1st and are current. House value is still 50% under of the loan amount on the 1st mort.

1.Does the statute of limitation apply to this?
2.Can they foreclose my house? if so, when? when the values are back up?

any other info appreciated