Who must file a statement of expense to obtain a lien against the property for compliance with local regulations?

The responsibility to file a statement of expense in order to obtain a lien against a property for compliance with local regulations typically falls under the jurisdiction of the County Clerk. This process is crucial because it serves as a formal mechanism to secure the municipality's financial interest when property owners fail to comply with local codes or regulations.

When a municipality incurs costs to remedy code violations—such as clean-ups, repairs, or other enforcement actions—it must document those expenses and officially file them. The filing creates a lien, which is essentially a claim against the property for the outstanding amounts owed, ensuring that the locality can recover its costs through property taxes or at the time of future property sales.

In this context, other entities like the Mayor, Municipal Health Authority, or City Council may have roles in enforcing regulations or approving fines but do not typically handle the legal and administrative tasks involved in filing liens. The County Clerk is equipped for this specific administrative function, making them the correct answer in this scenario.