Currently there is no way to change the Arbiter, assuming anything happens to the Arbiter's address or if for any other reason both the Buyer and Seller decide to go with another Arbiter there is not a way to to this
Both the Buyer and Seller can be hostages of a malicious Arbiter or if the arbiter's address is compromised since there is no function to change it.
Funds could be locked after a dispute since there is no function implemented to change the arbiter.
Manual Review
Implement a function to change the arbiter as long as both the Buyer and Seller approve it.
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