It is a term of every real estate contract that all financial charges be discharged. In the event that the net proceeds of sale (after commission) are not sufficient to pay the mortgage, you will have to bring in money to complete the deal.
Contact your lawyer early and get these dealt with asap before listing. If these items are on title during the selling process they will weaken your bargaining position with potential Buyers.
If there are issues here that are expected, contact your lawyer who can assist you with strategies to deal with some of these issues.
Have questions, Call or Email Real Estate Lawyer Peter Borszcz at Pihl Law Corporation (250-762-5434).