A DV request is for validation of debts.
If the debt is conceded as valid, there is really little basis to challenge its validity.
Even if you wish validation, a DV request must be sent within 30 days after dunning notice in order to be timely.
I assume, based on the age of the posted collections, that dunning notice was sent more than 30 days ago.
Even if timely, a DV does not require any response. A timely DV imposes a cease collection bar, which remains in effect until validation is sent.
The debt collector can choose to remain under a cease collection bar, and not respond.
If the DV is not timely, the debt collector can chuck it in the trash can....
Finally, if your DV is timely, the cease collection bar it imposes cuts two ways. It prevents the consumer from making any PFD or settlement offers, as the debt collector is precluded from any collection activities, which includes payment negotiations.
As for making a settlement offer, the peril is slim to none provided you are willing, if they do bring civil action, to simply pay the full debt.
You might wish to make a PFD offer, preferably for the full debt, if deletion of the reported collection is your primary goal......
