I realize it is an enormous project, and there are a lot of elements that need to be considered, but I would love any input to get me going in the right direction.

Looking forward to interacting with you all!

Found another 4-plex with good/great numbers (>$200/unit CF) which I am now under contract and moving fwd with inspections and a lengthy close secondary to seller (as you read further, should I consider getting out of this contract - only $500 in earnest).Have always dreamed of owning the apt complex my single mom and I spent a few years in growing up (yes, there's an emotional element here).

They are responsible for their interactions with neighbors.

But it's best to learn how to run numbers manually on your own so fully understand the formulas and why each element is important.

They are great, inexpensive, and offer a heating element, multiple flame colors and speeds with the click of a button on the remote and they look sexy in the living room or even master bedroom.

From there you can wade through Chapter 3 to find details of each type.Here is a link to the entire Chapter 3 of the LDC:https://www.osceola.org/core/fileparse.php/2731/urlt/2019-06-03-Ch3-Performance-Siting-Standards-June-2019-Ord-2019-42.pdfThe County also has a very good GIS interactive map that once you learn how to use it, it provides a ton of information. https://maps.osceola.org/gisweb/WebPages/Map/FundyViewer.aspxLet me know if you have more questions or need help.

Or hardening rentals from the elements to decrease utility cost?

But from my 1 limited interaction with the current owner, seems unlikely. 

I think house hacking a duplex in midtown/downtown can be possible, but the success stories I have heard included some element of creativity, luck, and/or rehab.. i.e. things like the property had a basement, or there was a surprise extra 500 SF not in the listing (so property was suddenly discounted in price and a new room could be added), etc.