in a very similar position to yours both financially and family wise
tracker of 1.15%, owe 255k, 25 yrs left, neg equity of 140k
we've been renting for 9 months and rented out our apartment but we're already sick of renting and the fact is we can't make it a family home, can't paint the walls the colour you like (without permission), some of the furniture isn't your own etc etc. Becoming a landlord isn't ideal and it is a Hassle but we don't like the alternative (using savings to pay off NE) and then start again and rent.
we're actively looking to buy, seeing a place this evening actually. Although we want our own home we won't pay over the odds a second time so we have some criteria this time on what the price of the property should be as well as the type of property and the location