The poster isn't incompetent necessarily, just completely lazy dumping his research project on an internet forum and hoping other people will google stuff for him while he goes and does what ever he does when he's not working.
I looked into doing this at my place in Seattle. There are a number of options with their own pros and cons. Direct microwave antenna on the roof to the fiber hub downtown was the best option for large buildings, but that's specific to my area and had a large cost of entry.
Ended up not doing anything and I highly recommend it. Best you can do is to tell everyone to go solve the problem themselves and if a few neighbors want to share a connection over a WiFi router that has QOS enabled and split the bill then the association won't report them to the ISP for violating the TOS.
To give you an idea of why this is almost certainly the best option, here is the list of things you should have done as soon as you got this task assigned to you:
do the actual work you've been assigned of getting the list of provider,
examining the different terms of service,
see what options exist,
do a cost benefit analysis,
decide how you want the liability to work,
determine who is responsible for responding to DMCA take-down notices when some teenager is hosting stolen content,
decide what happens if you have a heavy bit torrent user that is reported to you,
who pays the lawyers fees for dealing with issues that may arise,
what binding agreement you are going to give each of your units,
what if they are renting to other tenants,
what if they have an open wifi router connected,
who is going to draft the binding terms of service,
how much is it going to cost just to get the agreement worked out,
how cats and dogs are supposed to live together,
etc...