As @John Warren pointed out it really depends on the type of property.It's common for property management to charge 10% of gross rents for SFH's and small MFR's.As you get into larger commercial MFR deals that number will drop slightly due to economies of scale.

I'm very limited as to how much capital I can have, but I want to eventually find a way to use rentals to scale my income and get off of disability entirely.

One of the strategies that helped me scale was buying properties out of state working with turnkey companies.

I think what I’m running into is that normally people who are just starting to scale don’t do cost segregation studies and therefore CPAs who cater to newer and/or smaller investors are set on depreciating over 27 1/2 years.  

I work closely with a real estate accountant, and I believe that both professionals are necessary partners for real estate investors that would like to scale up.

I want to choose a strategy that I can scale so I can become financially free and pass it down for generations to come.  

Once you start scaling your business the home warranty doesn't make sense.

With that said a Series LLC is good if you are looking to scale your business and acquire additional properties over time.The benefit of the Series LLC is that, generally, you have all of the benefits and protection of multiple LLCs, with a lower maintenance cost that would be similar to having a single LLC.

You will never scale with this mindset. 

I've noticed that there's a key fork in the road for investors who want to scale.