When do you need to renounce MLE? For example I just won a bid on Blatche at 7.25, now I have eaten into my salary room and have just over $8M to spend. My MLE hold is $6M. Given I have only one free agent (Peja) who I do not intend to sign is my MLE worthless or can I wait to ass Blatches salary (as a real GM would), use up my cap space and then add Blatche with my bird rights to go over the soft cap?
It's doesn't matter what order you go, you basically had no chance at using the MLE. The second you spend any money on a free agent that is purely cap space then you don't have an MLE anymore. If you signed Peja for 3 mill then you could use your MLE, otherwise, no you can't do any sort of workaround.
EDIT: Further, if you did get some free agents first then you could have used the bird rights to go over the cap.