The same company has been harassing for the better part a year now wanting to buy a property I don’t own. I have filled a DO NOT CALL registration, I have blocked their numbers multiple times, I have told them to stop calling and to remove my name from their list, and now I’m getting maybe 1 or 2 calls a day and multiple texts.
You don’t own the property, so tell them you’re willing to sell, go through whatever process they give you, wasting as much of their time as you are willing to, then inform them that they’ll have to talk to the owner to finalize the deal.