One day I get an urgent text message from our tenant that one of the trees is on its side leaning and wanting to fall into the neighbors home!

The property next door to this one I own 50/50 and went out to cut down a tree that our tenants said would fall on the neighbors home.

@Paul Zofsak how will you prove in court that the tree was NOT in good health?

It's a large yard that overlooks trees and such.

Other areas of concern are wetlands, flood plains, endangered species, archtectural and historic significance. 

Or am I barking up the wrong tree?

We refinished Floors, New paint on all walls and ceilings, new light fixtures, rebuilt entire back deck, painted entire exterior, trimmed large oak trees where branches were hanging over the roof.

If you have a flat roof with drains, or a pitched roof with gutters I would ensure either way that the flow of water is un-obstructed most commonly by leaves or pine needles from trees.

Our Grafted lime trees put a little production in year 2 and 3 but nothing noteworthy.  

Former gas station with leaking under ground storgage tanks7. woodland with all the trees clear cut8.