That way they can better control deal flow, and also can convert more of those leads to a profit.  

I came across a fantastic article on the top US Road trips and unsurprisingly The Oregon Coast took the top spot :) Top 7 Scenic US Coastal Road Trips:- Oregon - Pacific Coast- California - Pacific Coast- Maine - Route 1 - North Carolina - Outer Banks- Alabama - Connection By Way- North Florida - A1A - Florida Keys - A1AI might move The Keys up this list a little..but the entire Oregon Coast is breathtaking. 

in particular make sure you know the value that will be added by the ADU and that in your case both units may be rent controlled (no 15 year exemption in some jurisdictions for a garage conversion were garage is over 15 years old.  

It can boil down to human error and things we can control, but sometimes it is just an issue out of everyone's control. 

We are considering developing it into a multi floor climate controlled self storage facility. 

At least, find out who the company is and have them send over the bids to you so the company can't mark up.I also want control of the bank account, in my name.Gino

However, this would be putting 2 attached units in front and 2 attached units at the back so don't think that would fly but if it does that would be fantastic.

This strategy can help reduce utility expenses.Mid-term and short-term rentals can have utility costs up to 10% of gross income, including electricity, water, gas, cable, lawn care, and pest control.

This implies residential units can be built at lower costs and provide better return. 11) adding an ADU to SFH can make the SFH fall under rent control.  

I would like to avoid providing keys to the tenants and just have them setup and control the codes for access.