To answer your question we really need to know if you have conditional blind bids or just blind bid waivers - From the MFL website
Answer: Enter Blind Bidding Waivers
Non-Conditional Blind Bidding allows owners to enter all players that they wish to bid on in one round. To enter a Bid go to the For Owners > Waivers during your Blind Bidding Event and choose a Player to Add. Now, enter a Dollar amount and then choose a player to drop from your roster if needed to stay within your roster limits. You can continue to add all bid requests in this window and then Save your Bids when complete.
The system will then process these bids and players will be awarded based on the highest bidder.
Submit Conditional Blind Bids
Conditional blind bids are a lot like waiver request waiver moves, in that owners can enter multiple rounds of waiver moves, and prioritize their picks in each round. Each round's worth of requests is looked at, top to bottom, and the first bid that is considered valid is the one that the system will accept, ignoring future bids in that round. Here's a concrete example of how conditional blind bidding works, assuming franchises 1 and 2, and players A through Z, with a season-long blind bidding limit of $10, and no owners having any money spent on blind bidding.
Franchise Round Add Drop Bid
1 1 A Z $5
1 1 B Z $8
1 2 C Y $6
1 2 D Y $2
2 1 A X $4
2 2 C W $5
Read as English, these bids mean:
Franchise 1, in round 1, wants to acquire player A for a bid of $5, and drop player Z. If that bid cannot be done, he wants to acquire player B for a bid of $8, and drop player Z. Note that even though the bid for player B is higher than the bid for player A, the bid for player A is listed first, and therefore given higher priority.
Franchise 1, in round 2, wants to acquired player C for a bid of $6, and drop player Y. If that bid cannot be done, he wants to acquire player D for a bid of $2, and drop player Y. Franchise 2, in round 1, wants to acquire player A for a bid of $4, and drop player X. Note that this bid does not have a second-ranked bid, so if this bid does not go through, player X will remain on franchise 2's roster.
Franchise 2, in round 2, wants to acquire player C for a bid of $5, and drop player W. If that bid cannot go through, then he wants to acquire player D for a bid of $1, and drop player W.
On the process waivers page, the system will look at the bids, starting with the highest dollar amount top priority bid, and continue looking at bids until all are processed (either successfully, by doing the add/drop, or unsuccessfully, because the bid is considered invalid), and by default select the bid that it thinks should go through (or "None", if it considers all bids invalid).