Vincent Valle wrote:

It's true that my trees are 50feet in height, but is attaching a
dipole
from a tree to a house a safe operation? I'm also not sure that it's
legal in my municipality.

Hams and SWLs have been doing it for decades. What is the danger? Or
install the antenna between two trees, and just run the feedline to the
house.

How would I access the antenna for maintenance, and how would I
attach
the lower end?

You would have insulators at the ends of the antenna wires. Attach
nylon or polypropolene rope from the insulator to some accessible
tie-off point. If you need to lower the antenna, untie the end ropes.

Another option is to install a 10 foot TV type mast on top of your roof
(on a tripod mount), or on your chimney, and use that as the center
support. Then attach the ends of the antenna to trees.

Art N2AH