An LLC is great for liability protection, as it shields your personal assets if something goes wrong with the property.

Being that I have my own property and feel I have a lot of basic knowledge on Real Estate I wanted to make sure she is protected when she sells the property. 

If you are concerned about protecting yourself, just buy an umbrella insurance policy for $1 million.I'm not sure why you're concerned about liability?

Make sure the Flat Fee Company is NOT a referral service, that the broker is reachable and licensed ... check reviews and license numbers (licenses should be listed on the home site), they should allow at least 25 pictures, no charge for changes, and a good customer service.

Treat the customer with respect, provide safe and desirable products,   purchased at the right price and condition, provide quality management  and anyone can be successful no matter what the product or market.  

This company is doing it all for the customer.

Why don't they provide police protection and enforce basic laws instead of price gouge landlords providing basic human services?

Some of these include:1) Your product/value proposition2) Marketing/Management/Customer Success3) Systems, Automations, Efficiency4) LocationTo me, #1 has the biggest weight on the success. 

Above all, protect your principal.

My first question to protect you and the property owner is are you licensed and insured to be able to manage someone else's property?