quick question to the OP, why would the house sold to you for 22% below the market value?
A lot of houses nowadays are sold through "leads" where they contact a company for a quick sale, at an arranged price, without having to put it on the market and wait it out (That might have been quicker for them in this case!!)
They basically contacted someone's company, expaining thier situation (Couple in thier 60's, the man had a heart attack a few months ago and wants to move closer to nottingham centre (Must have a gunshot wound criteria he needs to fill or something)) but wants to stop driving, hence contacting the guy we got offered the lead from for a quick sale at a price he arranged.
And yeah, reading the thread back, i can see how it would look "very dodgy" from many points of view.