Also, appraisal and market values can be different and it might be lower than you're expecting.

Write it down and put it above your desk where you intend to work on your offers;"Have no expectations." 

As an Owner, you would expect the PM to be responsible for its own negligence. 

NOI divided by the properties value is the cap rate.On a 5 u it building with yearly rents of $34,500 and a sale price of $250k I would expect a cap rate to end up around 9%. 

I would really like some feedback on what realistic numbers look like for a duplex house hack, as I am struggling to find that unicorn property where everything fits perfectly and I don't want unrealistic expectations prevent me from ever pulling the trigger.To set the stage, I have been looking for multi-family properties for me to house hack into in the Maryland area for a few months.

75+ units you can quit that F/T job!!!

Someone with expertise should be able to quote a flat rate for the entire project and for each stage of the project.I would expect a lawyer to charge more if getting paid depends on future events, because that means more risk for the lawyer.

John T. from @brandon hall, his BARRRR strategy suggests that you should advertise the rental before purchasing so that the property is considered ready and available for rent, ie in service, to take deductions rather than having to cap and depreciate then.

What would one expect in regards to compensation?

I want to start investing soon, but don't want to regret spending the money on a mastery if the outcome is not what i expected.