Hey, fellow law school applicants!

I'm currently in the process of preparing my law school applications, and I have a question regarding submitting multiple letters of recommendation. I have two professors who have graciously agreed to write me specific letters of recommendation for my top school choices. Additionally, they are also willing to write a more generic letter that I can use for all other schools I'm applying to. However, I'm a bit confused about the logistics of submitting multiple letters. I was hoping to get some advice from those who have been through a similar situation. Is it possible for them to submit multiple letters? If so, how should we go about submitting them to assure they don't get mixed up since I will be waiving my right to view the letters?

Thanks in advance!