If you take a look back at reply 15 from T.T.B.E. - the legalities and other aspects appear to be sorted and all will be under the supervision of the Vicar, including the making of announcements, both in the service and at the graveside.
Others will be watching out on the day of the funeral, which must be quite soon now, if it hasn't already taken place. Things seem to be well in hand now. At the moment we can only trust at that everything went smoothly, and according to plan.
What an unecessary trial this has been for her and her mother! In her last post, TTBE also stated that she may come back and let us know how the funeral went, so perhaps for her sake, it might be best if we leave off our advice for now - and hope that she is able to tell us that indeed all was well on the day!
Jeanne