Ind. Code § 6-1.1-30-14.5

Sec. 14.5. The department of local government finance may adopt rules under IC 4-22-2 to limit the basis of payment for services provided by all professionals, including but not limited to attorneys, architects, and construction managers, who work on capital projects, to a fee for service agreement and may not adopt a rule authorizing the basis of payment for the services to be a percentage of the cost of the capital project.