We are agreed on all the criteria a site needs to meet for us to consider purchasing it.
We are agreed on all the criteria that we value in a site that would contribute to our desire to choose it over another.
We are agreed on how much we want to borrow and spend to purchase a site.
We have a clear method to compare properties against each other that uses our ideal purchase criteria to both determine our level of interest in buying, and to select a favourite from multiple options.
We have agreed on a democractic approach to making the decision to purchase a specific property.