1098 Mortgage Acquisition Date

I am a shareholder in a cooperative apartment building in NYC.

Each year, shareholders get a 1098 with information pertaining to the mortgage on our building. 

 

The 1098 has a date in Box 11 - Mortgage acquisition date.  The date is 4/21/22 which may or may not be relevant to this inquiry.   The 1098 does NOT have any date in Box 3 - Mortgage origination date.  TurboTax indicates this box must have a value. 

 

This is not my personal mortgage. I don't have a mortgage for my apartment.   This is the mortgage on our cooperative building. 

 

Is mortgage acquisition date, Box 3, something that is usually resident on the 1098 form or is it maybe an oversight on the part of the accountant for not including it on the form?  I can contact our Managing Agent to see if I can get this date if absolutely necessary that it be input.