Consultant fees. The Village may retain the services of professional consultants (including planners, engineers, architects, attorneys, environmental specialists, recreation specialists, and other experts) to assist in the Village's review of a proposal coming before the Plan Commission and/or Village Board. The submittal of a development proposal application or petition shall be construed as an agreement to pay for such professional review services applicable to the proposal. The Village may apply the charges for these services to the petitioner. The Village may delay acceptance of the application or petition as complete, or may delay final approval of the proposal, until the petitioner pays such fees. Review fees which are applied to a petitioner, but which are not paid, may be assigned by the Village as a special assessment to the subject property. The petitioner shall be required to provide the Village with an executed copy of a professional services reimbursement form as a prerequisite to the processing of the development application.