There is only one Form 8889 to be filed for your husband's HSA's. Your husband's two HSA accounts are treated as a single account for tax purposes.
Only distributions are reported on Forms 1099-SA. If there was no distribution from a particular HSA, there will be no Form 1099-SA from that account.
Yes, TurboTax will include the HSA Funding Distribution on From 8889 line 10.
