Who Controls Indiana Cemetery Plots?

Let us assume one person wants to buy a headstone for another person's grave site, can they do so? This question depends on the ownership of the burial plot.

Indiana statutes define the ownership rights to multi-space plots. joint multi-space plots, and family burial plots. Only the first type of plot presents the prospect of a single owner of the plot. So long as another person has a property interest in the burial plot, I cannot see any way of putting a headstone on the grave site without the co-owner's permission. That is simple property law.