Mich. Comp. Laws § 557.254
Any property hereafter derived from property which constitutes community property by virtue of the provisions of Act No. 317 of the Public Acts of 1947 shall constitute community property and remain subject to the provisions of said act and for such purpose said act shall continue in force: Provided, That, except where the conveyance or other instrument of title under which the same is acquired or other evidence of ownership thereof expressly states the intention that such property shall be community property, any such property acquired within 1 year after the time this act takes effect shall be deemed to be separate property of the husband or the wife, or both, according to the name or names set forth in the conveyance or other instrument of title under which such property is acquired or other evidence of ownership thereof, unless within such 1 year period either spouse having an interest therein, or any of the devisees, legatees, heirs or distributees of either of them who shall have died prior to or during the running of such 1 year period, shall file notice of claim that such property constitutes community property: And provided further, That any such property acquired after the expiration of such 1 year period shall be deemed to be separate property, as aforesaid, unless the conveyance or other instrument of title under which such property is acquired or other evidence of ownership thereof shall expressly state the intention that such property shall constitute community property. All of the provisions of section 3 of this act with respect to any notice of claim pursuant thereto shall be applicable with respect to any notice of claim under the provisions of this section.
MCL 557.254