Or, leave the unit empty for months on end as you try to study on it, and still you only know theory not real world fact. 

So in my opinion, I think you should simply pick one and study it.

You could have thrown a bandaid on it and reglazed the tub at your desired cost only to discover that leak that caused the rotted floor would have resulted in the tub coming out next year. possible structure repair and maybe ceiling repair of the floor below with a new tub install and repair cost similar to what you are looking at now.

They tend to study a lot and would be public safety aware (although I have some who would like to get the virus so they can just not have to worry about it; stupid happens everywhere).  

I have no experience in REI, however I have ammassed considerable savings, enough to make an investment in a plex rental property on the island of Montreal, Quebec.I do not yet think I am at the stage of "Analysis Paralysis", as I have only begun reading and studying the topic of Real Estate Investment for less than a month.

And, about the once...we discovered that the tenant actually liked "being in charge." 

I will study storage units more as that seems to be the popular and common consensus here.Thank you.

For example you have renderings, feasibility studies and presentation.

There are actually some decent articles and step by step case studies from people who have resurfaced their garage floors as well:https://www.concretenetwork.com/fix-concrete-cleaning/removing-embedded-oil.htmlhttps://www.bobvila.com/articles/concrete-floor-repair/

I began my investment career in San Diego and Los Angeles and quickly discovered that it would take me a lot longer to build the portfolio that I wanted if I continued only doing business here.