One cannot determine from the info given when the collection will become excluded from your credit report.
The single, date-certain that determines excludion of a collection is the date of your first delinquency in the most recent chain of any delinquencies on the OC account that iommediately preceded the collection.
The Open Date for a collection is simply the date they received collection authority, and is irrelevant to credit report exclusion.
The DoFD must, by definition preceded the date referred for collection.
Many commercial credit reports do not show the reported DOFD. You can usually get it from your free annual report at annualcreditreport.com.
The CRA must exlcude the collection no later than 7 years plus 180 days from the DOFD.
They usually exclude at approx 7 years from DOFD, so once you obtain the DOFD, the exclusion date will most likely occur at 7 years thereafter.
Exclusion applies to any and all collections, regardless of when reported
