
I sympathise with your predicament but, if the breeder
has lost her son, can also see how the loss of her son can make everything else take back stage. I have no idea how her son died - he could have been ill for a while or may have died suddenly and unexpectedly. Even knowing that a loved one is going to die does not make the situation any easier or any more acceptable when it actually happens. My OH was terminally ill for a long time and his very recent death was an end to a lot of suffering - we all knew it was going to happen and, at the end, were praying for it to happen but that didn't, and still doesn't, make it any easier to deal with.
If this lady has indeed lost her son I can guarantee that the paper work is not at the top end of her priority list at the moment. The puppies have all gone to their new homes, she knows they are being cared for and sorting out any paper work for the pups will just be another thing she has to get round to when she can.
If the reason she has given for the delay with the paperwork is not true then that is an entirely different situation. It would seem to be a very elaborate deception and one that could be easily disproved.
I hope you manage to get it all sorted eventually.