@Tax2019Pay
1) since there were 4 lots purchased the same day and the chronological order is no longer known.doesn't appear you have a choice.
2) don't combine; when entering the sale in TT, there is a box to be filled out called 'disallowed washsale' ; this should be the difference between the sales price and the cost basis
3) I do not see that it is necessary since you are not changing the sales proceed numbers or the cost basis numbers that the broker will report, I can't see the iRS will care,m esp since it will be clear the difference is the wash sale.. E-file if you can; the return will be processed much quicker vs. paper filing.
you could resolve this whole issue if you sold the 75 shares at Broker B today 🙂
