There's no solo required for multi commercial,
I see you underlined it, but it's cheaper to bring an instructor buddy along and split the costs.
He said 10 in a twin, I suppose you could do the 20 [(3) 20 hours of training on the areas of operation listed in §61.127(b)(2) of this part that includes at least]— in a SE plane, since it doesn't say the commercial instruction needs to be in a twin in §61.127(b)(2), but just that you need 10 hours in a twin for the comm multi rating.
aaaaaaah...now that may work for me. Gotcha.
-mini
...and Thanks!