Mississippi Code
Certificate of Authority
§ 79-4-15.02. Consequences of transacting business without authority

A foreign corporation transacting business in this state without a certificate of authority may not maintain a proceeding in any court in this state until it obtains a certificate of authority.
The successor to a foreign corporation that transacted business in this state without a certificate of authority and the assignee of a cause of action arising out of that business may not maintain a proceeding based on that cause of action in any court in this state until the foreign corporation or its successor obtains a certificate of authority.
A court may stay a proceeding commenced by a foreign corporation, its successor or assignee until it determines whether the foreign corporation or its successor requires a certificate of authority. If it so determines, the court may further stay the proceeding until the foreign corporation or its successor obtains the certificate.
A foreign corporation is liable for a civil penalty of Ten Dollars ($10.00) for each day, but not to exceed a total of One Thousand Dollars ($1,000.00) for each year, it transacts business in this state without a certificate of authority. The Attorney General may collect all penalties due under this subsection.
Notwithstanding subsections (a) and (b), the failure of a foreign corporation to obtain a certificate of authority shall not impair the validity of any contract, deed, mortgage, security interest, lien or act of such foreign corporation or prevent the foreign corporation from defending any action, suit or proceeding in any court of this state.

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