A separate document with separate signatures should withstand scrutiny should a dispute arise between the parties.

Upon receipt, I will prepare a resolution. 

I could have hung on to see if a resolution was available .

Handling Maintenance requests and emergencies, Handling tenant disputes, Ensuring the tenants are properly insured (if you require them to), Marketing the property, Screening applicants, Handling the security deposit return, and a whole lot more. 

I'm not disputing that.  

The self-manager isn't paying a property manager, but if the self-manager is leaving out the "managing" part, then almost certainly (s)he is giving up lost revenues that far exceed paying someone to actually manage the property.Managing means you are responding promptly to all inquiries, monitoring rates and comps daily and making adjustments as necessary, ensuring that the property is safe and clean, that everything is operational, and quick responses and resolutions when something goes haywire.  

There are ways to dispute or get another appraisal but it is a real risk that you should have a mitigation plan for.

He has promised countless times over several months (5 months to be exact) to come back to us with "a proposal by the end of this week" via email on 11/28/23 and "we will get this wrapped up this week" via email on 12/11/23 - and we are already in the first week of February 2024 without a proposal and without any progress in coming to a resolution.

Real Estate professionals should always take into consideration the statement about a disability before entering into any dispute with tenants.

From their site on disputing reviews:Reviews should be relevantReviews must provide relevant information about the reviewer’s experience with the Host, guest, stay, or Experience that would help other community members make informed booking and hosting decisions.