We moved into our home 2 years ago and there is (what I think is) a Japanese Maple growing near the driveway. Half of the tree is growing upward and tall, while the smaller half is growing back down toward the ground (almost like a weeping style). If you zoom in on the pic, you can see the weeping style at the base. What is going on and what do I do with this?

@OttoBjornson

It looks like the rootstock, upright broad leaves, is suckering and taking over from the weeping dissected leaf variety. One or the other will win. The sucker will win if you do nothing. The weeping one will win if you remove the sucker. You choose.

Definitely the shoot below the graft line has been growing for a number of years now. Look closely at the union to the main stock and hopefully you can make a clean cut and remove it.
However, it may be too late if the union has weakened the actual grafted portion union. If you had a close up of the lower base of the plant to view I could give a response on which I would remove.
No guarantees at this point as I would consider this one " major surgery"

Here are a few better pictures. Thanks so much for all your help!

@sapphire9187
Thanks for those pictures. Although I am not a gambling man, I would take out the shoots. Looks like there are several below the graft line.
Just follow the shoot down to the main stock and with a good quality tree saw, make the cuts. Let the saw do all the work, don't apply a lot of downward pressure. That way you will get a very clean cut. Leave about 1/4" of room from the main stock ( trunk), the tree will heal on its own. I never apply any type of sealer to Japanese maples. There are many products available for that but we have always found the tree seems to heal better when the cut is left to air out and let mother nature do her job. The japanese maple stock is very dense so that makes it ideal to heal on its own naturally ( imo )
Good luck!

Thanks so much! I'll give it a try!