Non-Conforming Properties in Indianapolis

[Anthony G]

I've been looking at some older multi-family properties in Indianapolis and saw one that had been converted from a duplex to a 4-family. The county records still indicate that it is a duplex but the conversion was obviously done years ago before zoning came into affect. Has anybody ever dealt with this before? Have you gone through the process to make it a "legal non-conforming" property or do you just not worry about it because the conversion was done before zoning?