nullify

/ˈnʌlɪfʌɪ/
verb

1. make legally null and void; invalidate.
   “judges were unwilling to nullify government decisions”
   synonyms: annul, declare null and void, render null and void, void, invalidate, render invalid;

• make of no use or value; cancel out.
  “insulin can block the release of the hormone and thereby nullify the effects of training”
  synonyms: cancel out, neutralize, negate, render ineffective, make of no use or value;
  rare negative “the costs of preparing the case would more than nullify any tax relief gained”

“Our experience has been great, we are so glad to be rid of our timeshare. The advisors have been absolutely wonderful, we have always been able to speak to someone, and even if a specific person wasn’t available they would always call me right back. We have had some lovely holidays at our timeshare but we just didn’t want it hanging over our children when we aren’t here anymore. We are definitely pleased with the service that we received, and would have no hesitation recommending this service.”

timeshare

/ˈtʌɪmʃɛː/
noun

1. the arrangement whereby several joint owners have the right to use a property as a holiday home under a time-sharing scheme.
   “a growing interest in timeshare”

• a timeshare property.
  plural noun: timeshares; plural noun: time-shares
  “timeshares in Majorca”

termination

/’təːmɪˈneɪʃ(ə)n/
noun

1. the action of terminating something or the fact of being terminated.
   “the termination of a contract”
   synonyms: ending, end, closing, close, conclusion, finish, stop, stopping, stoppage, winding up, discontinuance, discontinuation, breaking off, cessation, cutting short;
2. a word’s final syllable or letters or letter, especially when constituting an element in inflection or derivation.