Originally posted by RockyJSquirrel
If you are within one of Tampa's preservation districts, you won't even have an issue getting a removal permit for it.
If this were in Raleigh's historic district, they'd have you jump thru 18 hoops to make a removal case and then you may not get thru. I've raised the bar for proving hazard lately, tho it may slip down again under pressure.
Good eye, Rocky, yes it has been topped, and if the decay from the topping cuts meets the decay at the base then you have a hollow tree. But as Mike said, it may be a very safe tree. Since the growth from the topping cuts is likely to be poorly attached, reduction of sprawling end weight is likely to be the first order of business before cabling.
But don't get Mike and me started on THAT one again!
You asked for suggestions?
#1. Contract with the owner to do an aerial risk assessment so he pays you to climb the tree, check out the topping cuts, sound for decay with a rubber mallet, look for cracks,streaks,bugs, or any other sign of defect. Or if you think owner will balk at paying for inspection then sell phase 1 of pruning job and take out dead wood while you're up there.
#2 ID tree and pest species, look at vigor of tree, make a guesstimate of useful life expectancy and present your findings and opinions on management options to the owner in a written form that will remove liability concerns.
#3. Do not listen to the armchair Kevorkians who may post and say based on their telewisdom the tree has to go. See the "Safe tree" post below; the poster evidently couldn't be bothered to gather data besides a little numbercrunching, and instead seemed to be looking for moral support on a decision he didn't take the time to competently make on his own.
Numbercrunching is fine but you cannot ignore the research on the strength of woundwood published by Kane in JoA, which proves that strength formulas are not reliable on trees with a lot of woundwood, such as yours.
Re liability, if removal is recommended without adequate consideration, the owner would have grounds to come after you for malpractice, and pursue a claim for the value of the lost tree.