How would you go about safely and quickly removing a wooden structure on four legs with a chainsaw, such as an elevated hunting blind? Here you can see a few examples of such structures.
My idea was to bring the entire thing down by cutting one leg at a time, but I'm thinking this might be unpredictable, particularly if the structure starts twisting as it falls. A second option is to actually enter the structure and work from the top, removing bits to bring the total weight down to a safe level. Does anyone have experience with this?
Before anyone asks, the removal is legal and will be supervised by the police. The person operating the chainsaw (myself) has a sawyer's licence, but I've only worked with trees up to now.