Not sure it is possible for you Canadablue, but if you can jack and get under the car to have a look.
If you can clean up under there (allow a half an hour) you can give your self a better chance of seeing the origin of the leak on a later inspection the next day (if not right away).
Then someone here can possibly help....+ you can find out if your mech cuts the mustard....

Otherwise you may choose to pay the money ad infinitum for this and many other issues as they arise.