I give a very short talk on this issue.
It has one slide: DON'T
Why?
Receivers will resist providing virtually all documentation e.g. planning paperwork and even sufficient title.
They do this on the basis of having limited knowledge but, honestly, I think it's just down to being plain ornery...........
It usually takes a lot longer than an average sale - for some reason, there never seems to be any urgency.
The OP is a cash purchaser which does make things a lot easier - where there is a mortgage involved, a purchaser's solicitor can seldom certify the title to the lender and it all gets horribly complicated.
The easiest title is registered ( there is a folio) with no planning issues- ideally built pre-1963.
This would be a rare enough situation- there is almost always a planning issue.
mf