It's too late for that.They're clearly being unreasonable which shows you've made the right decision by getting rid of them.

Do you have unreasonable expectations regarding the amount of rent?

I also believe the tenants expectations are unreasonable

I understand the scope of this question is very broad, but I'd love to hear your thoughts on any of the following, no bad ideas: 1) Quantitative (measurable) goals owners have with their professional PMs.2) Qualitative goals owners have with their professional PMs. 3) If the PM is only managing 3 units for me is it fair to push them towards these goals or is this unreasonable considering how small the portfolio is? 

Different if you become their friend AFTER being their realtor :)I can imagine how hard the conversation would be if you had to tell your friend that what they are offering is not enough as a good offer and them still wanting you to write offers, being super picky and wanting you to show them far too many places, them asking you to do more than the average realtor would because you guys are friends, or maybe they are totally unreasonable and difficult to deal with when buying a home and they will blame you when you lose a deal for them etc.If you really value them as friends I would avoid being their agent.

It seems unreasonable to ask them to "commit" to every deal I offer on. 

I'd also be wary of high maintenance suburban moms or any one else that appears to have unreasonable asks when touring the property.

I offer them 100% financing with the following terms:- provide a detailed deal analysis- Schedule for rehab (timeline for each phase, cost for each phase, list of contractors and repairs needed)- Payments processed through an escrow agent to pay contractors that meet the said schedule- Right to title with improvements if any one the terms are not met- 10% points on the loan or 20% of profits for payment which ever is greaterBeing that the project is 100% financed and they won’t have any “skin in the game” I don’t think it would be completely unreasonable to have right to title with such strict terms.

FHA got this reputation for being crazy unreasonable in the lead up to the crash.

@Kevin Ha I dont know about the laws regarding the situation, but I dont think its unreasonable.