This is not a solution, but a list of the maximum amount of money per mission you can earn without any glitches, if you achieved Silent Assassin Rating.
The following is based on Professional difficulty:
Starting Fund : $75,000
Mission 01 - Death of a Showman ----------- $300,000 (Professional Rating)*
Mission 02 - A Vintage Year ------------------- $550,000 (Silent Assassin Rating)
Mission 03 - Curtains Down ------------------- $550,000 (Silent Assassin Rating)
Mission 04 - Flatline ---------------------------- $520,000 (Silent Assassin Rating)
Mission 05 - A New Life ------------------------ $420,000 (Silent Assassin Rating)
Mission 06 - The Murder of Crows ----------- $620,000 (Silent Assassin Rating)
Mission 07 - You Better Watch Out… ------- $620,000 (Silent Assassin Rating)
Mission 08 - Death on the Mississippi ----- $620,000 (Silent Assassin Rating)
Mission 09 - Till Death Do Us Part ---------- $650,000 (Silent Assassin Rating)
Mission 10 - A House of Cards --------------- $825,000 (Silent Assassin Rating)
Mission 11 - A Dance with the Devil -------- $720,000 (Silent Assassin Rating)
Mission 12 - Amendment XXV ---------------- $550,000 (Silent Assassin Rating)
Mission 13 - Requiem -------------------------- $300,000 (No Rating Given)
Total funds earned from the Campaign - $7,320,000
* I managed to get Professional Rating (2nd highest rating) on the training mission. I got no witness, all accident kills, and with my own suit, but still didn't get Silent Assassin Rating. Not sure what is the requirement for Silent Assassin or the maximum amount of money you can get from the tutorial mission.