If we neglected to include a monthly PMI premium in the disclosure on page 1 of a GFE in the "Summary of your loan" payment box, can we reissue a GFE more than 3 days after we knew of the monthly premium if there are no changes in any of the fees on Page 2?

No, can't redisclose to correct your own error.

But there are no changes to the fees disclosed on page 2 of the GFE, only on the total payment that includes the monthly pmi. There would be no changes in the page 2 fees and no tolerance violations on the HUD-1.

Are you saying the bank needs to eat the monthly PMI?

I do not believe that the section you are referring to is subject to a tolerance. If the PMI payment was quoted and was wrong, not simply ommitted, The Bank would not eat the difference.

What if the LTV was 95% but only the P&I payment was disclosed on page 1; i.e., the monthly MI premium was totally omitted? Would the lender be responsible for covering the cost of MI until it was eligible to be discontinued?

You would not be responsible for the monthly premiums. However, if you collect any premiums up front and they were not disclosed in Block 3 you would have to cure any tolerance violation caused by not disclosing the up front premiums.

I have a question regarding redisclosure of the GFE. We have a change circumstance for a borrower requested lower loan amount. I know we can only change the loan amount but I am looking and the initial deposit into escrow (block 9) is different on the revised. This can't change correct?

You are not required by RESPA to redisclose for a lower loan amount but if you do, the initial deposit into escrow can fluctuate as it is not a tolerance item.