I have been recruiting for 25 years and have just come across a situation I have never faced.  Perhaps some of you have been here and can offer advice.

I have a retained client looking for a CEO in the US.  The fee they are paying me is very significant and six figures, but specifically for this position. The client is headquartered abroad.  The client is very wonderful and upfront.  My initial panel included three people who he is interested in.  They were all flown to the UK for interviews (different days and times).  All of my candidates are currently presidents of companies.

After interviewing them, my client wants to hire two people.  One will be a worldwide executive, the other the contracted for CEO.  My client has agreed to pay me for both people, but I have no idea what to charge.  We work on both contingency and retainer.  I was thinking of asking for the equivalent of a contingent fee for this person.  

We should all have these problems.  Anyone have a good solution?