Granting the Ramsey county board discretion in valuing and selling tax-forfeited lands for public purposes, specifying certain factors for consideration by the county board in determining land values; providing for conveyance by the commissioner of revenue and for use of the lands; authorizing local government units upon payment to the county of the value of the lands to convey the lands for use as commercial or housing redevelopment projects; making generic the federal census date for the determination of median household income for targeted neighborhoods designation eligibility purposes (ra)