I would anticipate it would depend on the level of detail you desired but it has been my experience that the will do free estimates.

Chris Clothier provided regular video updates, and the property management team sent frequent emails with property-specific details, tenant situations, and proactive solutions.

Here's a detailed guide on how to screen applicants: Application Screening Guide

See below for the detailed breakdown of each.

Let's say $300k, you then agree to the purchase price but add your own terms (ex. 0% interest, 5% down, 16 years to pay back).This way, you're paying (example) $1,800/month but renting the property for $2,400/month and pocketing the difference.Anyone have success doing such a thing?

A short-term rental with a stay of 7 days or less + Material participation =also non passive.

Make sure it explicitly explains the process for termination if you are unhappy with their services, especially if they violate the terms of your agreement.3.

The more detail the better. 

They break down every Cleveland neighborhood in detail.

Hold it for the long-term.