Last time I looked at the MI laws they allowed remote access, as allowed by your institutional bylaws. What the law does not allow is proxy attendance, i.e. sending someone in your stead. So, Board members are legally obligated to attend but it does not have to be physically if your group allows other means for live attendance, such as via phone, remote video, etc.
I can try to look up the specifics if you want but that was the gist of it last time I looked.
-Steve
"DALNET is a community of libraries working together to provide access to information for research, cultural enrichment, and lifelong learning opportunities."
"Wayne State University is Knowledge, Diversity, Community!"