Did they explain their reasonings? Did the 1 minority report highlighted things nobody else saw?
They did. Various things they pointed out.
Were these paid assessments? What we're their qualifications?
They were tree service reps doing free estimates. Only one was an arborist-in-training.
FWIW, outside of extreme circumstances, a good risk assessment report should NOT say "remove" or "keep". It should explain the risk levels based on probability of failure, likelihood of impacting a target and consequences of failure.
IF the top half of that tree fails, it will probably crush a house. Likewise IF a truck hits he head on while we are both going 70MPH I will die. Does that mean I should never drive on the interstate?
You had 4 (presumably???) qualified individuals assess the tree...yet you want people online who you don't know from Adam to assess it for you. Sounds like you want an excuse to remove it more than a quality assessment...
I'm looking for help either way. I'm stuck in the middle. My father in law thinks they are junk trees and should be removed. He's offering to pay for it. My wife doesn't want to turn dow the offer now only to have to pay for removing it ourselves in a few years on our dime.