Laurence,

Investment advisory fees are deductible as 2% miscellaneous deductions on your CA tax return only for fees related to taxable income.  So, no, those for retirement accounts are not deductible.

It also gets a bit tricky if you have a mix of taxable and tax-exempt properties in a brokerage account.  You then need to deduct only the percentage that was related to the taxable portion by, say, using the Dec 31 values of the portfolio entries to come up with that percentage.