I'm still none the wiser about why a non-solicitor can not transfer a property title. I personally know of one executor who did this and, of course, it was a simple case. That's why he didn't use a solicitor.
There's a lot of speculation about 'inadvertent' this and 'messing up' that and people being people and changing their minds and of course that's why it helps to have a third party to referee and use their expertise to find a solution. But, in the OP's case, if there is a 100% clear path into the OP's ownership (as proven by the Probate Office) then where is the risk that someone down the line will question the OP's ownership and render the property difficult to sell?
There's a lot of speculation about 'inadvertent' this and 'messing up' that and people being people and changing their minds and of course that's why it helps to have a third party to referee and use their expertise to find a solution. But, in the OP's case, if there is a 100% clear path into the OP's ownership (as proven by the Probate Office) then where is the risk that someone down the line will question the OP's ownership and render the property difficult to sell?