Mich. Comp. Laws § 450.2013
A foreign corporation may acquire or, through another person entitled to transact business in this state, may make loans, or participations or interests therein, insured or guaranteed in whole or in part by the federal housing administration or the veterans' administration or a successor or similar agency of the federal government, which are secured in whole or in part by mortgages of real property located in this state, and a foreign corporation may purchase a loan, or participation or interest therein, secured in whole or in part by a mortgage of real property located in this state, without maintaining authority to transact business in this state under this act or any other law of this state relating to such qualification or authority and without paying fees with respect thereto. Neither the failure, heretofore or hereafter, of such a foreign corporation to qualify or maintain authority to transact business in this state under this act or any such other law of this state nor its failure, heretofore or hereafter, to pay fees with respect thereto affects or impairs its ownership of such loans or participations or interests therein, whether heretofore or hereafter made or acquired, or its right to collect and service the same through another person entitled to transact business in this state, or its right to enforce the same or to acquire, hold, protect, convey, lease and otherwise contract and deal with respect to the property mortgaged as security therefor.
MCL 450.2013