When importing AddressFinder data, on the Address Format tab, mark the Retain 'care of' and 'attention: information from the second line of the original address checkbox. If the second line of the originally submitted address begins with 'care of', 'c/o', 'attention:', or 'attn', and you've selected this option, that line is retained and appended as the last line of the updated address.
 

Note: If 'care of' or 'attention:' is not on the second address line when the data was submitted, or not listed as specified above, the line is removed from the address.  In addition, any other non-address information, i.e. business name, is removed from the address lines.
 

If your addresses do not contain 'care of' or 'attention:' and you mark this checkbox, it does not change your data in any way.