Their comments are that we are being unreasonable.  

This seems unreasonably high to me. 

In other words, if the light with the glow ring is discontinued, or now costs 500% more than it used to, it would be unreasonable for you to replace like with like because the primary function of the object is the mirror and the light, not the glow ring, and no court would find in the tenant's favor if it were litigated (no one is going to litigate over a mirror). 

For instances if I need to do an eviction in Cobb County it is typically a pretty quick process without many hurdles.

After that what specific charges by your Property Manager do you feel are unreasonable?

They just have different hurdles, and more people are familiar with single families.

What is your greatest hurdle in investing as of 2019? 

If you state too much, a court may find it unreasonable therefore unenforceable. 

Once I partner with someone / raise the capital for a down payment, I feel I will have overcome a big hurdle in acquiring my first deal! 

Recently we got our permit to go forward with the duplex that has come with a few hurdles.