As others have said, the are IRA distributions, not loans.
The brokerage firm is correct that only one of these IRA distributions is eligible to be rolled over to a traditional IRA, and must be done within 60 days of you receiving the distribution.
As for the other two traditional IRA distributions, these could be converted to a Roth IRA (taxably) or rolled over to an employer plan like a 401(k) within 60 days of distribution because these transactions are not subject to the one-rollover-per-12-months limitation.
The problem could have been avoided by first doing nonreportable trustee-to-trustee transfers to a single traditional IRA and then taking a single $90,000 distribution from that IRA.
