@profiler isn't one of those nice people... true story!But CIC havnt contacted me yet. Also due to my parent's condition my mother has gone through surgey and they both are old. My wife visists to help with some chores and I mostly have to stay with my parents. But I stay with my wife too, its just that things are critical right now and we are working on it. I recently across this forum decided to post my concern here. There are so many nice people who help each other in this forum. Thank you so much for help guys. Its a bit stressful right now.
As I said, as long as "on paper" she is living with you (same address), unless they send an inland investigations unit out, they won't find out. If they call her, she has to tell them where she lives. What the inland investigators look for is evidence that she lives with you. Your clothing intermingled. Shoes. Tooth and hair brushes. Etc.
That said, I was just sharing the warning, so you are aware.
I hope your mother gets well soon!