I have had no issues with using their rent collection services. 

Those are my thoughts and the things you have to tighten up if you actually want to offer this as a service. 

Especially #4 about durability.Do you charge your clients a flat fee based on size/price per sqft for your services, or % of spend?  

You CAN limit that agreement to a specific property; but, as others have stated, agents are looking for a certain amount of loyalty from their clients.If an agent gets vibes from a prospective client that indicates that they want to cheapskate and not pay a professional for their service, they are not likely to waste their time with them.

Here is a solid summary from an internet search that will give you all you need to move forward:"A notice to terminate a property management agreement is a written communication to the property management company that informs them of the intention to end the contract.

In addition to public Service Jesse Brewer is a real estate broker with over 20 years’ experience in dealing with rental properties both as an owner / manager, but also as a broker selling them.

If you don't meet that 12 month seasoning requirement and/or want to hold the property under an LLC, a debt service loan may be a better option.

People had to move to used  or as we did had to open more services to match different box configurations.  

In my market, I only have one vendor qualified for appliance warranty work, and the warranty companies paid him half his standard fee for each service call. 

I don't use their service.