Isn't there a tool out there to bruteforce a sentence with one bad word?
I think so but if not I can make one quickly
Yep... btcrecover can usually work it out fairly quickly... however you need the "incorrect" seed, and a known address generated by that wallet. Sounds like the OP may not have the address.

This is the most "up to date" version of btcrecover (that has added extra features over the original by gurnec):
https://github.com/3rdIteration/btcrecoverUnfortunately, that is correct, I do not even have the address. If I did, I could see if it was worthy of recovering, I cannot even guarantee that it's not another empty wallet.
So far, I've recovered three wallets, one of them was intact, another one was simply empty and the last one had $100 in it. This is a file I found randomly on my drive, the 12 word phrase could also point to one of these 3 wallets.