Tax Delinquency and Assesor's Records Question

[Ryan York]

Hello all,

To start, I live in Michigan where your property is forfeited to the county after 2 years of delinquency. I've been analyzing some tax delinquency lists and I've found several properties that have delinquencies longer than two years with the owner still listed as the owner. 

My question is, would the city assessor's online database not change the owner of the property even if it is forfeited, or is it more likely the person still owns the property for some reason?