How about the monthly recurring cost?  

N these markets the ADUs in SZ zoned areas typically are given a value by appraisers far less than the cost to add the ADU.  

Tenants are responsible for property taxes, insurance on the building, and common area and maintenance costs under triple net lease.

The lack of communication between the different departments has cost me thousands of dollars.Good luck with wherever you end up and whichever company you choose!

Ask around your gen contractors, what is the cost of cosmetic repair per sq foot in the area of your interest.

If it is a viable option, any idea of the rough costs involved?

You would of course not deplete all of your cash reserves on the down payment in order to service the monthly debt payment and carrying costs, but this should give you an idea of what you can accomplish now if the time is right.Many hard money products offer 100% funding for rehab costs so you would not need to save for this portion of the BRRRR project.

Understand the fees involved and calculate the total cost for an entire year of management so you can compare the different managers.

Because you are literally guessing at market rent and the PM will…1) keep your application and denial process legal2) advertise, screen and place the new tenant faster and better3) probably save you more money than they cost you. 

What were the total costs of this project?