At some point after quite some learning and studying I figured out that I do the most of the work and the best person to serve myself.

Personally we just do option 1 or 2, it's easy to explain and understand, and even if option 2 only recoups you 80% of the cost, that's better than 0% or the headache of trying to figure out option 3.Again make sure this is all allowed for your area

Seems like a constant headache and argument...What are your thought/experiences?

I personally think 2% is reasonable, especially if he found the deal and did all the work to get it over the finish line.

But I did implied during an in person conversation, that they'd get their security deposit back, if the apartment was left in good condition.

What is your experience / track record with this type and size of investment? 

Budgeting is a new and painful experience for them.

If this system is not out there, I would imagine there would be strong demand for the first person to create a operating system solely for real estate investors.Cheers!

What is your level of experience? 

The experience emphasized the importance of strong partnerships and local market knowledge.