|Only use Signing Service Contacts. You've worked for them, not the Platform.|
DON'T USE TC references (especially after you get them). That is Proprietary information.
P.S. If it's another Title Co. requesting the reference that may be okay. As far as "relationships" go, the industry is not always known for being particularly partial to those, But I'd say get in gear and start giving out Lots of business cards. Also, you're bound to meet someone in the "industry" at real estate, insurance and law offices