(a) Any corporation authorized by the law of this State to act as a surety, shall before executing any bail bond as authorized in the preceding Article, first file in the office of the county clerk of the county where such bail bond is given, a power of attorney designating and authorizing the named agent, agents or attorney of such corporation to execute such bail bonds and thereafter the execution of such bail bonds by such agent, agents or attorney, shall be a valid and binding obligation of such corporation.
(b) A corporation may limit the authority of an agent designated under Subsection (a) by specifying the limitation in the power of attorney that is filed with the county clerk.