What's the dimensions of the building?

Always run your own numbers (underwriting) because there are frequently mistakes and sometimes these numbers are inflated to make the investment look better to a casual observer.Not sure what your question is for the next paragraph.A survey is performed by a professional land surveyor which tells you the dimensions of the lot and if there are any encumbrances or issue with the placement of improvements on the lot.

It probably is best to go with that normal sized fridge (the dimensions of the one that you proposed - 29.5” depth and 15cu ft).

I want to sub-divide the lots to their original dimensions.

IE - removing the flooring/sub-flooring, joist dimensions and span, # of joists to replace, mold, etc.The elephant in the room is - where is the water coming from? 

How will you know if there are encroachments or protrusions without knowing the exact location and dimensions of any improvements?

But you would have to ask a estate planner/cpa about that dimension.

I have come up with a list of skills that I feel would be a great help to the renovation process:3D Modeling/Building Measurements-With a 3D model you can get accurate floor plans, elevations and 3D views of the buildingTest Fit Layouts-Once the 3D model is built, multiple layouts can be created and analyzed-Potential problems can be solved before they are builtMaterial Calculation/Cost-When the design is finalized, square footages and materials can be calculated based off of the modelVisualization Renderings-You get imagery of the building/spaces before construction moves forward-There is a reference during construction Construction Documentation-Specific details can be drawn and dimensioned Staging-A house with furniture better shows the potential of the space Architectural Photography-People want nice pictures that actually show the space and they want a lot of themI would appreciate your feedback on this. 

@Luke RonJust that it constantly amazes me how many people will throw hundreds of thousands of dollars at a property and learn about what is involved later.STR has a lot of dimensions going on.

Zoning may allow a quad, but then realities set in with lot dimensions, how things are laid out (12.215-217), etc., that will be different for a quad put on a SFR lot vs. a SFR put on a SFR lot.