Car tax and ownership question ?

[Old Merc]

A very good friend of mine sadly died recently,I have agreed with his daughter,who is also a good friend of my family, to buy his Mercedes for my wife.
Probate and all the legals have not been finalized and may take a few more months.The solicitor dealing with this is also a good friend which makes the sale so simple. The car is registered in the deceased name,it is taxed till November,parked up in his driveway,not being used so all ready to go.
My question is, if I just give her the money, start using the car,keep the RK details and road tax as they are until November,or when Probate is finalized,could I land myself in trouble with Mr Plod,or DVLA ? I have a full motor traders insurance so I would just add the car to my MID list,the car would show up on NPR as taxed and insured.

[Old Merc]

My wife is covered on my Motor Traders Policy for driving our privately owned cars for SDP only.This has been part of my policy for the last 30 years.I am now a semi retired one man band sole trader.
Insurance is not an issue.My question was the probate side,as far as I`m aware I cant register the car in my name until probate has been granted.

[Old Merc]

REALIST123 said:

TooMany2cvs said:

speedking31 said:

In my inexpert opinion, the car belongs to the estate, not the daughter, even if she is an executor. Therefore you cannot buy it yet. Say an unknown tax bill surfaced, then the estate might have to sell the car to cover the bill.

The daughter, as executor, can sell the car. The proceeds of the sale form part of the estate, and it can be registered in the buyer's name immediately.

This seems about right. Why not?

And me. I would prefer to register and tax it in my name straight away. I suppose DVLA will refund the road tax to the estate? whats the bet that will cause issues.
Thanks for the replies guys.