Hi Jennifer,
Kudos to you for educating yourself about tax deductions available to real estate investors. That are LOTS of them :-) The problem is that there are not many accountants that specialize or educate themselves on the nuances of the tax code that affect real estate investments. In other words, as my sweet mama would say "they don't know squat about 'em." But, at the end of the day, it is you, not them, who is responsible for what's on your tax return.
That being said, I think what your CPA may have a problem with is your use of the term "component" depreciation. The introduction of the accelerated cost recovery system eliminated the use of component depreciation in, if I remember correctly, 1981. So "component" depreciation really is no longer an option. If your accountant was under the impression that you calculated your depreciation expense using the disallowed component method, he of course, told you that the calculation was unacceptable.
What IS allowed, however, is "cost segregation." In a tax court case [HCA v. Commissioner, 109 TC (1997)] the court determined that Congress intended to distinguish between components that constitute section 1250 (real property) and section 1245 property (tangible personal property). The IRS reluctantly agreed that cost segregation does not constitute component depreciation and has allowed the accelerated expense. The problem is that MANY accountants are not aware of this provision. They don't keep up with tax court rulings.
My advice for selecting your accountant is the same as that for selecting your attorney: find someone with experience working with real estate investors. In fact, you are correct. Al's course probably WILL make you more knowledgeable about REAL ESTATE tax deductions - but not the tax code :-)
Regards,
Bill