It's on the 9E Union Website available for download (always has)...the document expires 15 years from 1997 (which would be 2012)...
Most of the document talks about how Express captains would be given a 1 for 2 integration on Saabs and 1 for 3 on J-31s...FOs would be given essentially a "staple."
Section G is the most relevant part for SLI:
In the event that a transaction such as the one which gave rise to this Letter
of Agreement occurs in the future, where such transaction involves in a net
loss of pilot positions at Mesaba and a net gain of pilot positions at Express,
it is hereby agreed that the parties shall enter into a Letter of Agreement to
provide for the transfer of Mesaba pilots to Express, under terms and
conditions no less favorable than the terms and conditions of this Letter of
Agreement.
This Letter of Agreement shall become effective upon signing by the President of the Association, retroactive to the date of signing, and shall remain in full force and effect through the later of:
1. the amendable date of the then current collective bargaining agreement between Mesaba and the Association, or
2. fifteen (15) years from the date of signing of this Letter of Agreement.
Signed this 26th day of November, 1997.