What recourse has he got and what proof would he require to establish this?
A Buyers Agent is required by law to justify the estimated purchase price of a property that he is recommending to his/her client.
This is typically done by finding at least 6 other comparable sales - comparable for size & type and must be recent in terms of date - i.e. less than 6 months. There are many other factors, that by law, a BA must take into consideration. Broardly speaking they are:
1.
Market conditions
a. Economic Outlook
b. Local market issues - such as supply and demand.
c. Other
2.
Comparable Sales
3.
Optimum / alternative uses
4.
Restrictions
5.
Property features
6.
Special conditions
7.
Other relevant facts and specific instructions
Legally, the BA must do all this as well as all the finer details under each heading that I have not detailed here, for the sake of brevity.
However, this merely discharges the BA's legal responsibility.....you cannot legislate for competency. (i.e. the BA could be hopeless, but you can't do anything about that if he has fullfilled his legal responsibilities as above.
A similar property an arm's length away sold for $90,000 less.
This sale in and of itself is not enough to say the BA did the wrong thing.
There could be other factors - desperate seller, sewer line under the property, illegal building works, etc etc - all/some of the things listed above.
I'm not saying the BA was wrong (he may be incompetent or he could have simply have made a mistake) BUT there may be other reasons not obvious to you at this point in time.
Hopefully the BA has PI insurance (it is not a legal requirement) but we certainly do here!
If there was a valuer involved, in the case of getting a mortgage for the property, what was the val?