Lender documents are held under Library tab:
Click on 'Library' then on 'Lender document library':
Click on 'Choose lender' and search/select lender:
Once the lender is selected filter by document type (A); or download desired document (B).
Document description is visible by clicking on the document 'card'.
When lender is selected next to it's name is a link that leads to lender's website
See this feature in action on this short video demo: