Let me guess whose going to pay for that, oh yeh the middle class.  

What kind of class(es) should I take?

I use my retirement accounts to passively invest in other asset classes to diversify my portfolio.I suggest that you invest passively.

I would say the main neighborhood I invest in is C-class.

You need to categorize each building into class A+, A, A-, B+, B, etc.

This deal is in the Canton, Ohio area, but in a middle class suburban neighborhood on the NE end.- Duplex with both sides rented at $625 each ($1250 total monthly income), seems about market rents for the area- Asking $120,000- Annual taxes are $2400- Been on the market since November- Repairs appear to be minimal, still need inspection (rentable, but not updated)What other information am I missing?

The time investment to learn the program has been worth it for me, but my plan has always included Class C rentals. 

All depends on what class you are trying to Purchase. 

Office furniture and fixtures are 7 year GDS assets.Absent an electing real property trade or business election under 163(j), and ignoring the land and amortizable intangibles, I'd expect to see 5yr, 15yr, and 27.5/39yr GDS assets only on a residential rental's depreciation schedule.Agree that it's difficult to navigate the tangible property regs and depreciation class lives without a CPA.

What are the professionals thoughts on things like classes or seminars?