This was very helpful Judy, thank you for taking the time to put it together. Last year I was one of a few "firefighter" preparers who was conservative on this subject as some of us did prepare a 1040X for the '17 returns. Some taxpayers did see the relief but others were asked by IRS to get a corrected 1099R which is not possible. It all depended on who was at the other end of the 1040X.
I've attached the memo put out by NYC's Law Department for their feelings on this issue. I can see where they are coming from and it is the reason I didn't believe it was worth preparing an amended return last year. But with the few who did receive relief, good news spreads fast (we had a saying, telephone, telegraph, tell a fireman). So it's the luck of the draw, and I may as well join in.
Thanks, Bill
WTC Disability Memo V2 - (# Legal 8411565) (004).pdf