IRS Deduction for Real Estate Investing Expenses

[Buddy Holmes]

What are the IRS rules on deducting expenses for Real Estate investing efforts?

I have several current rentals which are reported on Schedule E.

However for "Driving for dollar" expenses, trips to check out DST investment properties, trips to check on unimproved properties, etc. These do not seem to be appropriate under a Schedule E and I have found reporting expenses on Schedule C to be a bad idea. So what about these?

@Amanda Han, @Brandon Hall, any thoughts?