GoPaperless is what the name suggests - go paperless or electronic signature.
They have few products - services to the consumers. Specially, real estate related.
eSignOnline is similar to DotLoop or Docusign - online electronuc signatures.
RedFax - send and receive fax via email. No more physical fax machine required - Internet based fax service.
I have not used this service - though with pricing starting at $10/month.
Though in this age, do we really need fax machine replacement?