I don't have a list off-hand and while it may be helpful, I'd always seek someone that is a unique fit for your business, messaging and approach to daily ops (how to interact with tenants, billing and the like).

There are odd rooms and unique construction.

This will be a labor intensive process for the building department because every house will be a unique design, unlike a large subdivision that has a few floor plans that are repeated multiple times.Trouble is, this county has been so anti-development for so long that so many contractors and trades people have gone out of business or moved away to run their businesses in a better political climate. 

I began investing in the quad cities in 2009 and know that I bring a very unique perspective from a tax and accounting perspective when it comes to real estate. 

Stuff just unique to San Francisco.

There are a few unique variables since as of now, their single home sits on all 5 acres.

This tenant is unique that way, but if you can eliminate the risk, it's nice to sleep well at night. 

Tenant turn over will likely be high and selling the homes will likely take many years to accomplish unless it is in a very unique area where people have money or financing to purchase the homes outright.

I am recently retired from public service and in a very unique position in life.

The seller was a bit “unique” ;) so I wanted to make sure all the T’s were crossed and I’s dotted.