Well - you can ask the seller for them -that's one way. The seller should be responsible to get you the bylaws. Your attorney, assuming you are using one, should have requested them during the attorney review.
Otherwise, reach out to the management company, and you can order (yes, order, as they will charge you for them) a set. You should have been informaed as to which management company handles the complex. Call them.
It's your right to look over the rules and reguations prior to buying the condo so that you know what restrictions there might be.
During the attorney review period, your attorney should have asked for those documents. Generally, they give the sellers' a few days to deliver them and they give you a few days to review them after they are received. Sometimes, the bylaws, etc are on a disk and sometimes they are in a big thick book. You should also receive the most recent financials for you to review. You probably want to make sure they are solvent before investing.
I own a condo in another state and the Association has a google group with them posted for members of the group to review at any time that they need to.
The condo association should have a management company that you can call, if you have already passed all of the above steps.
It seems to be that you have not closed on your purchase yet. In any case, you should have reviewed the bylaws before the attorney review was over.
At this point. your attorney needs to make sure you will get a copy of the bylaws at the time of closing.
If the seller does not have a copy, then make sure you get credit for it, since you will need to purchase one from the management company.
if you are purchasing a forclosure or short sale, usually the sellers don't have a copy of the bylaws and most likely you won't get a credit either.
Hope this helps!
Hope this answers your question but your agent should have demanded them the day the agreement was executed