From the get-go, I was trying to explain about forests as dynamic systems. Nutrient cycling, wildlife habitat, etc. They are starting to see the forest as more than standing, live trees.
The root disease concerns me much more than the beavers due to proximity to the house, and they just lost another tree.
I think that the treatment for LRR is to watch the forest change and get treated watching the dynamic nature of nature. Maples will move in, successionally speaking, baby beavers and such.
They have way too much lawn up away from the existing forest, turning wetland. I think that they can protect what they want to keep, plant new trees closer to their house, where they will be enjoyed much more, and let nature take its course.
http://maps.google.com/maps?q=6211+18th+...211+18th+Ave+SW,+Olympia,+WA+98512&gl=us&ei=ap_ES7HiLIassgOs3cHADg&sa=X&oi=geocode_result&ct=image&resnum=1&ved=0CAoQ8gEwAA
I can't be positive, but I think that the "A" is right where the largest doug-fir is located, with the house (not yet built in that pic) directly west of it. On the "Sattelite", it shows the existing pond to the north, flowing northish toward southish.