Best Trade Solution

We are processing a documentary collection on behalf of our client.
We are also going to take the proceeds from the collection as collateral.
our client is the exporter. we are sending documents to his buyers bank on DA basis.
Bill of exchange will be sent due in 75 days from BL date.
bill is drawn on end buyer.
can we be the drawer?
Would there be risk associated with this?

Thank you in advance

In my opinion, the doc. collection stands separate from any agreements made between the bank and it's client.
You cannot replace the name of the drawer (you client, exporter) on the presentation letter and insert your bank's name.
The drawer should remain the exporter, since the invoices are issued in the name of the exporter.

Since the money under doc. collection will be paid by the collecting bank to remitting bank's account (i/o directly to exporter's account) you will have the control over the received fund.
In order to take the proceeds under doc. collection as the collateral you may want to sign a separate agreement with you client, can be an assignment of proceeds issued by your client.