It can be simple or complex just depends on what the client wants. 

Our costs are provided up front, are minimal across the industry, and we will always be transparent.

@Nathan G. is 100% right, but we'll add that it depends on the Class of the rental and corresponding tenants.The better the class, the more you can "bend" your requirements. 

For turnkeys, most providers use 7% of the monthly rent for vacancies (but double-check that with the area the property is in) and 5% for repairs.

It all depends on what strategy you want to follow.

We try to keep it simple, and provide examples in the guide for people that are not sure what counts and what does not.

And you have no risk of evictions and, depending on your management company, you get most of your damages covered even.So I'm wondering if maybe investors just need to see the actual proformas and what these numbers look like with some basic assumptions (i.e. annual rent increases, annual appreciation) to really hit home how good these numbers truly are.   

What's a fair amount, well that depends on what this is actually costing you in terms of actual expenses plus the time and hassle involved.

I offer a 20-30% discount depending on the property, time of year (sometimes a long term guest just isn’t worth the amount of money you can lose), and length of stay. 2.

Tracking down the buyers for signatures, providing the proper disclosures and addenda, explaining that all inspection reports are 52 pgs, etc was really draining on me.