499.75  Service on association.
  1.  An association’s registered agent is the association’s agent for service of process, notice, or demand required or permitted by law to be served on the association.
  2.  If an association has no registered agent, or the agent cannot with reasonable diligence be served, the association may be served by registered or certified mail, return receipt requested, addressed to the secretary of the association at its principal office. Service is perfected under this subsection at the earliest of any of the following:
  a.  The date the association receives the mail.
  b.  The date shown on the return receipt, if signed on behalf of the association.
  c.  Five days after its deposit in the United States mail, as evidenced by the postmark, if mailed postpaid and correctly addressed.
  3.  This section does not prescribe the only means, or necessarily the required means, of serving an association.
93 Acts, ch 126, §22