That is a big chunk of money so can understand your distress. And is your sister suffering mental health issues or was the threat of suicide just that, a threat so that you would pay her the money?
You deserve answers and must confront your sister about this even if it means having an argument because now your own son is out of pocket too and if she says she is awaiting an inheritance ask when this will come through and possibly make other enquiries to check whether what she is saying is true.
It sounds like she us giving to all the runaround but until you know for sure you can’t be certain.
Advice needed re possible extension to house


