Indiana Code Title 36. Local Government § 36-9-36-48

Sec. 48. (a) Except as provided in subsection (b), sales to satisfy the bonds and interest shall be made as provided in this chapter for sales upon judgments or decrees foreclosing liens for assessments levied for improvements.

(b) The first bondholder who brings a foreclosure action against the property or any part of the property is entitled to have the proceeds of the action applied pro rata to the payment of that bondholder's own bonds and of bonds held by others.

(c) Only one (1) foreclosure action may be brought against one (1) lot or parcel of land.  However, all lots or parcels of land against which the assessments are in default may be joined in one (1) proceeding.