Can a shaliach (agent) nullify chametz on behalf of the owner?
Synopsis
The Mechaber permits an agent to nullify chametz on the owner's behalf. The Ran cites an opinion that forbids it since bittul is based on hefker and one cannot make another's property ownerless. Most poskim permit it, and the Mechaber's view is accepted l'chatchila by the majority. The agent must say 'the chametz of so-and-so shall be nullified.'
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