I feel like you just don’t actually know the definitions of the words you’re using here.

Don’t call someone stupid because you can’t explain your contradictory statements. You’re never going to, because they are contradictions. If every contract is a null and void at a sale, there’s no contracts to “extend” and how could you extend them ahead of time? It’s a sale, so you negotiate terms, than come back again for a sale? That makes no sense yet again dude.