https://www.mndor.state.mn.us/ecrv_search/

What are eCRVs?

Electronic certificates of real estate value. These are up-to-date records of the value of Minnesota real estate, and are necessary to document property sales. The counties where the sales are made and the Minnesota Department of Revenue use them to verify the terms of sales, and to ensure that we are fairly and equitably assessing the taxable value of property statewide. The eCRV is taking place of the old paper copies of CRVs that have been used in the past.