Given the subscription model decimating the MFN user base, clearing dead cap for new owners will likely be the standard. I'll take it on a case by case basis.
For example, prior to the 2010 season we have two openings. Charlotte will get their dead cap cleared if they get a human owner, Arizona will not. Charlotte currently has about $9.4 million to spend in free agency after they account for draft pick contracts and they have $16 million of dead cap. The Hornets new owner will need that extra money to spend.
Arizona, on the other hand, doesn't need cap relief. As it stands now they have nearly $200 million to spend after rookie contracts with just under $6 million in dead cap. IMO there isn't much difference between having $197 million and having $203 million.
That being said, if AI ruins things in free agency for Arizona, I will revisit the situation.