After much research and trial and error, I can’t accomplish what I want. I can access the name, guide, and type of link (attached v. overlay), but not the cloud path and other properties of Revit Links inside of Revit Links to my model.
I read somewhere that unless the Revit Link was opened, either through the links in my model, or directly loading the nested links, I won’t be able to access that information.
I suppose opening the Revit links could be part of the code, but that’s more than I’m willing to do at this point.
We’ve had problems with consultants linking to the wrong models in ACC; I was trying to check this automatically.