Our projects are organized in a master solution (containing every project) and multiple smaller solutions containing groupings of related projects.
I would like to share
The question is old, but if someone is still looking for the way to share team settings:
All the settings for R# can be exported and packed as a NuGet package and distributed as a regular ReSharper extension.
This gives you a flexibility: you can share different settings for different teams, ReSharper will take care of detecting the new version and notifying the developer. Well, basically all the benefits that you can get when using the NuGet.