OK. So I'm remodeling my bath. I am wanting to move my toilet into a new area created by the removal of a wall. Attached should be some pics of the plumbing from the basement. You will notice their is a vent for the sewer pipe for toilet that runs into the wall which I plan to remove.. so two things, is there anything I need to do or keep in mind when moving vent pipe, does vent pipe need to be perfectly upright or can I angle it with a 90, go up some, another 90 and reconnect to old vent. And then the headache of moving toilet pipe?

You have a problem with the drains that prevent you from moving the toilet.
How I would address this would be to first make the tee level and drop the top drain line that connect to the branch of the tee. This will be tight but it looks as though you will have enough room to cut the PVC off a few inches frrom the hub of the cast iron sanitary tee so you can couple to it. Next I would take a bar for leverage and turn the san tee to face where you wish the toilet to move to. NOTE: Once you've moved the tee the lead joints will have to be recaulked, not redone but just caulked using inside and outside caulking irons. Good luck, Tom

What about the vent pipe that is currently running through the wall I wish to demo? Is it OK for me to reroute it, basically in a "C" shape around?

And THANK you so much for the quick reply. This project is getting underway on Weds so ANY advice helps!

And also, I'm sorry for additional questions but what is inside outside caulking irons? Do you have a link for anything?

You may position the vent any way you wish as long as it's a dry vent with nothing draining into it. Inside and outside calking irons look like this,(see image #1 is a packing iron, #2 and 4 are inside irons and #3 and 5 are outside4 irons.). All you do is take the iron that bevels away from the cast iron and tap around the inside and outside of the joint. Good luck, Tom