What documents are required for the non O-A visa application at the Thai Consulate in L.A. and do they need to be notarized?

Hi guys, my questions are specifically regarding anyone who has gone through the Consulate of Thailand in L.A. and applied for the non O-A visa.

1- do any of the documents that they need, have to be notorized before uploading them?

2- Somewhere on the website it mentions that if you are sending bank statements for the $30K in deposit with the bank, you would also have to submit a letter of guarantee from the same bank. Is that true?

I am not getting any clear answers by email from the Consulate!!