Is there a straightforward way to add a family member to house title which has no mortgage? Is a lawyer required to do this? Is there a location or public site that can assist without paying?

At the top of the Real Estate Law forum is a sticky post that explains how to add someone to a deed. You can read it at https://www.askmehelpdesk.com/real-estate-law/how-add-someone-your-deed-91136.html

Unless you are adding a spouse, this generally means a transfer of ownership. There would be tax implications that you need to consider.