Ans:-
the amount the client is seeking in the litigation 
There underwriting fees are negotiated on a case by case evaluation & agreement. But yes, their fees a smaller fraction of the former. Stemming from the variety of work offered up - in some cases, they fund a legal practices with a suit of cases. and doubtless other ways of assistance are charted & found & funded too. Sometime IMF goes a long way to clarify the "legal geography" and must rely on their own specialists, or employ specialists. etc., etc.,
