Normally you can. You will have to get the Lender on the Second Mortgage to "SUBORDINATE" the loan for you. They may charge a small fee to do so. Your Title company can help you.
If you refinance your mortgage, the attorney representing the bank will use the proceeds of the new mortgage to pay off the existing mortgage and a discharge of that mortgage will be recorded in the...
If the second mortgagee forecloses and takes possession of the property it must pay the first mortgage or if they sell to a third party that party takes the property subject to the first mortgage.