The house was originally marketed at offers over £400,000 in 2008. There was an offer of £385,000 just after going on the market, but PILs turned it down as they were so confident of getting the 'offers over' at that stage.
All offers since then have been around the £250,000 mark, the last being £255,000 in late 2011. No offers since, but none of the few viewers since then have been in a position to make one as they needed to sell their own properties first. There's not a chance PILs will ever accept £250,000, no way and no how.
I do like the 'doctoring' idea whilst PIL's rent. I'll discuss it with DP I think, although how we'd ever convince MIL that her beloved dining room curtains needed to go into storage for a bit, I have no idea!