Northern Rock together product is 125% borrowing on your property with 90% secured and upto 35% unsecured. The unsecured portion is lent on the same interest rate as the secured portion making the borrowing a cheaper option than a secured loan or credit cards. Once the secured portion is redeemed the unsecured portion reverts to their standard rate (normally twice as much).
IF you were to redeem your mortgage (by remortgaging with another lender)I suspect the only early settlement NR will be interested in would 100p in the £.
I would suggest confirming the valuation of your property, then speak to a mortgage advisor who will carry out a full fact find to ensure remortging is a viable option, including looking into future affordability issues. Then IF it all looks good, talk to your IP about permission to remortgage along with an offer for a full and final settlement.
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