Setting up the Factor / Supplier relationship

Summary

Setting up the Factor / Supplier relationship

Content

Hello

We have use cases where multiple vendors work with the one factor. So we share the factor's bank account with multiple suppliers.

We would like to understand best practices with setting up the Supplier factor relationships in Oracle. 

1. Do we set up the Factor as a Supplier with address but no sites? 
2. Is Third-party payment relationships a good use case for Factor? 
3. We would like to consider Supplier portal access to a Factor. Often times, our AP team receives payment inquiry for Invoices from multiple vendors. Is there an option for a factor to login to the Supplier Portal and view Invoice/payment for multiple Suppliers, assuming we are able to establish the relationship between the Factor and the Vendors?