For hosting common files it's ok. Also it is on Android too do, great to transfer files between your Windows and your phone. But if you want better security you have to subscribe a monthly offer.
DocMagic - DocMagic is a web-based platform that is used to digitalize your mortgage and payment process by offering you tools that are easy to use and simple.
Dropbox - Online Sync and File Sharing
MBS Highway - MBS Highway is a web-based loan or mortgage management software solution that allows you to connect all your parties and stakeholders and helps you to complete the process quickly.
Google Drive - Access and sync your files anywhere
LendingWise - LendingWise is an intelligent and web-based software solution that permits you to automate your lending business and allows you to improve the CRM of your organization.
Mega - Secure File Storage and collaboration