(1) Every deed or other instrument transferring real property to named or unnamed trustees of a named unincorporated church, including a deed or instrument executed prior to May 21, 1986, vests title to the real property in the trustees of the named unincorporated church and their successors with full power and authority to convey and mortgage the property transferred.
(2) Every deed or mortgage of real property in this state executed by the trustees of an unincorporated church and recorded in the public records of the county in which the real property is located prior to May 21, 1986, shall be held to be a good and valid deed or mortgage transferring or encumbering the church property described in the deed or mortgage.
(3) The pastor or secretary of, or other administrative person authorized by, an unincorporated church may execute an affidavit stating the names of the trustees of the unincorporated church as of the date or dates stated in the affidavit. Such an affidavit is conclusive as to the facts stated therein as to purchasers and mortgagees without notice.
(4) This section does not apply to any conveyance or mortgage heretofore made the validity of which is contested by suit commenced within 2 years after May 21, 1986.