Which schedule? E or C?

I am presuming that you file a Schedule C to report the income from your services as a real estate agent or broker and a Schedule E for your rental properties.

If the foregoing is the case, then you will have to allocate the expenses (advertising and mileage) between Schedule C and Schedule E, in accordance with what is attributable to each.

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@vgentry wrote:

A CPA told me that schedule E is passive and that you pay FICA on schedule C earnings so it’s best to reduce the adjusted income on schedule C.  

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Your CPA is correct, but you cannot, deduct expenses that are attributable to your rentals, such as advertising for tenants, on Schedule C. 

@Anonymous_  how do I split it? While at office depot I ordered business cards for real estate and flyers for my rental.

In that example, you would deduct the cost of the flyers on Schedule E and the cost of the business cards on Schedule C.

@Anonymous_ I will split them up. Next time I will have the store ring them up separately with different receipts.

@Anonymous_ What is the tax rate for passive schedule E vs the tax rate for schedule C?

Your marginal tax rate does not vary. 

Both net rental income and net business income are subject to ordinary income tax rates, but rental income is not subject to self-employment tax.

An important distinction:

Schedule C income is subject to the self-employment tax.

Schedule E income is normally excluded from the self-employment tax, but the exclusion does not apply if the rentals are received in the course of a trade or business of a real estate dealer.

https://www.law.cornell.edu/uscode/text/26/1402

This is a complicated subject and you should rely on the services of a tax professional.

The Regulations clarify this point.

See https://www.law.cornell.edu/cfr/text/26/1.1402(a)-4

and mileage would be split 50/50. for the trip to the store. since it's dependent on the mileage not the cost of the items.