It's 30 hours of classroom style instruction over 3 days.

What are the hidden costs?  

The MLS listing will give instructions to the agents on what the showing protocol for that particular listing will be.  

Have the buyer send a cashiers check to the mobile notary with instruction to hand you the check when they get you to sign the Grant deed and hand it back to the mobile notary to send back to the buyer.. 

As to the second mortgage, have the seller give you a letter as a committment to lend you the money, then have a letter of closing instructions from the seller to the closing agent to escrow money required for the loan, directing that the money is not to be disbursed.

The granite counters were sealed with a water based sealant with 2-3 coats in the appropriate recommended manner per manufacturers instructions.

Very instructional.

I say find a good realtor that knows your market, learn your own market, learn how to evaluate a property (ARV, repairs, hidden costs).

Quickbooks, with Landlord accounting as instruction and template.http://landlordaccounting.com/

Depending upon your state, your escrow or closing attorney will receive detailed instructions from the lender about how they want their funds handled.