Give her clemency. Get her testimony and finish this.
There is no guarantee she would tell the whole truth. I fail to see the point of continuing this investigation, since the victims who sued him have been paid out of his estate. The congresspersons' main point in even looking into it was to "get Trump", but the disclosure of the records has not produced the smoking guns they were after.
So what is the point of wasting more taxpayer dollars on this disgusting information? Unless, of course, someone knows for sure that he is still alive, who is hiding him, and why.