KAEDC-
Nice house! I don't think your questions are really all knife related so here is my $.02.
As someone who has lived with woods most of my life I will tell you that trees in the woods drop a tons of leaves, limbs, and branches and a bunch of them will end up in your backyard. Occasionally a tree topples or splits and a big piece ends up in your yard and makes a big mess to clean up. I live on a large lot and part of it is 5.5 ac of woods going down to a creek. It is behind the grassed part of my backyard. It has 150' Beech and Yellow Poplar trees in it. It provides a year's worth of fireplace wood from just the stuff that falls down, limbs, branches, etc. If you can use the downed wood from your backyard woods I would suggest getting a chainsaw, a good, long, powerful one. Don't get a small cheapy or electric, it won't hold up for woods work. Other than that you will need something for all the fall leaves, and small branches. I have a lawn tractor and leaf wagon that I use to pickup the leaves, and a good bow saw for all the small branches that land on the grass. My lawn tractor also has a big cart to haul large pieces of cut wood from the woods to my woodpile. I use a big sledge and wedges to split up the logs once I have cut them into 20" lengths with my chainsaw. I use the Husqvarna 562 XP G and believe me it is worth the extra bucks if you live near or in the woods and use the downed wood for a fireplace.
https://www.husqvarna.com/us/products/chainsaws/562-xp-g/966570102/