I'm so sorry to hear your Max may be in CRF.....I know how devastating this news can be. I'm sure your head is spinning with so many questions. I highly suggest you join this group. They can be very helpful in answering your questions.......
http://pets.groups.yahoo.com/group/K...yDiet/messages
There is also some important info in their "files" to read......
This is another site with useful info....
DogAware.com Health: Kidney Disease in Dogs
A nephrologist typically handles these types of cases. I found one that may be in your area.......
Dr. Joli Margaret Jarboe
CARE Center
6995 E. Kemper Rd.
Cincinnati, OH
Phone Number: (513) 530-0911
Wishing you and Max the best..............P.S. I would also recommend that you contact the breeder you got Max from.