It is important to read the terms of the listing authority so you know how long you are appointing an agent for, especially if it is a sole listing, and when the listing comes to an end.
When a party to an agreement for sale and purchase doesn’t want to be under an absolute obligation to have to do something, it is usual to add a clause which requires a party to use “best endeavours” or “reasonable endeavours” to do that thing. But what do those phrases mean?