The Governor signed and executive order on March 18th  giving temporary authorization of remote participation in public meetings and hearings and temporary relief from monthly meeting requirements for school boards

https://www.michigan.gov/whitmer/0,9309,7-387-90499_90705-522173--,00.html

Executive Order 2020-15 (COVID-19)
EXECUTIVE ORDER

No. 2020-15

Temporary authorization of remote participation in public meetings and hearings and temporary relief from monthly meeting requirements for school boards