Hi I have two sugar maples in my yard that are about 19 and 21 feet
from the house. The trees have been topped in the past (before me).
They're about 15 years old (they might be younger but not older and are about 25-30 ft tall currently) and one has a girdle root and the other one
might also have one. I also have a red Maple about 30 feet from the house and 25 feet from the sugar maple that is closer to the house. My questions are:

A) Do I need to keep
topping them? My fear is they will always be too weak around the
original topping to support higher growth and will pose a threat to the
house.

B) Is there a chance of their root system damaging the house foundation due to its proximity?C) Should I try to remove the girdle root later in the fall or is the tree old enough that its removal will certainly kill the tree. I'm ok with some risk since I have considered removing the trees anyway
so if it dies from the root removal it would be whatever. If it will
certainly kill it, then I will probably just remove the tree.

D) Is there any issue with the red maple's proximity to the sugar maple? Do I need to prune their branches back from each other or will the trees start growing vertical where they meet?

E) Aside from trimming branches away from the house and our power line, should I be doing additional pruning of non-dead branches or just let the trees figure things out for themselves?

Thank you in advance for any advice that you can give.