I would consider hiring someone if I found someone that has set this up for rental property managers and come with some level of appropriate accounting qualifications....Thanks

No one can tell you a level of production that is average.  

@Bob Bowling See my edited post.Yes in theory I should agree with you that the required rate of return is proportional to the level of risk. 

The comp said it was worth about 76k, and based on the level of finish i'd agree I think.The thing that makes it appealing to me are the numbers.

This tells me he cares at some level and has an eye for detail.  

You want to make sure the tenants know you will handle emergencies immediately and any other request promptly.I almost would suggest not to get a full service management company for the first year or 6 months as how will you know what level of service to expect. 

They should work to maintain a high level of tenant satisfaction and minimize turnover when possible.

Will they get to SF levels where 1bd condos are going for $800k or more?

You'd also pick up the front-side commission of course.One of the things we talk about at our company is that our customers seem to value deals they find at a higher level than ones we find.  

@Tim Shin I really like the BP calculator for back of the envelope high level estimate, but you're right that every property will have different expense ratios.For example - one of my rentals is a brick home, energy efficient with an older A/C unit.