Q. Can you zoom mechiras chometz or sell it on line? How does one do then the Kinyan?
A. Poskim, in our contagious pandemic days, permit and many suggest to do it on line or by fax.
No kinyan (acquisitive act) is actually needed when just naming a Shaliach or agent to act on one's behalf. The kinyan will be done by the Shaliach, usually the Rabbi, when he sells it to the Gentile.
Rabbi A. Bartfeld as advised by Horav Shlomo Miller and Horav Aharon Miller Shlit'a
Important Numbers
