Please study engineering and you’ll have more of a grasp of why measuring amperes (electricity) or volume (water or natural gas) lends itself to reasonable precision.  

Print them off, study them, highlight them, make notes, read some blog posts, and understand the subject.The second document he links includes precise definitions and a guide for landlords to use for screening support animals.

Studying for and receiving the CCIM designation will be a solid plus.  

Due Diligence and Feasibility Studies - What studies or tests are essential before purchasing raw land?

Financing is definitely an area that I will need more study.

Quote from @Jamie Hora: The question you pose in the title, "Is a rezone required if availability study can support more density". 

Quote from @Melanie Baldridge: A question that we get:"Does the IRS require site visits for cost segregation studies?"

We have seen properties for as low as $100k benefit from engineered cost segregation studies. 

What you can do to offset this profit is to invest in syndications that do cost segregation studies (which will lower your tax you pay).

Study up on warrantable vs non-warrantable condos.One idea I think for a fresh grad, is to find a great RV park operator.