Readers' forum: Residence raffle

My husband and wife clients own a house that has been on sale for more than a year and they are starting to despair of it being sold. At present they are renting and need the sale proceeds to buy a new property having had to move for their work. They told me that they had seen a property that is being raffled and are wondering whether they could do the same. They are taking advice on the legal aspects but have asked me for the tax implications. I have never dealt with anything like this and wonder whether Taxation readers can advise.

The online raffle I have seen says that if a minimum number of tickets is not sold there will be a cash prize instead of the property. However if the minimum number is sold the total receipts appear to exceed the market...