That's completely illegal. You can make the behavior stop, and can also potentially sue the landlord. You should contact a lawyer ASAP.

Tenants who are evicted for nonpayment have a statutory "right to cure" by paying the amount within the time demanded in the letter. However, that...

After three extensions from the Commonwealth (130 days), one note from the court stating no further enlargements, a motion

Get a lawyer ASAP. You might have a good situation here.

Can a management office refuse to give the money of security deposit for a apartment that wasnt even rented?

This sounds like you have a case but there is not sufficient information to know for sure. (Did you sign anything? Receive anything? Etc.)

Do I have any recourse against condo-association as a tenant?

This is a serious situation. You should hire an attorney ASAP and discuss your options; this is not a good fit for Avvo. Do not hesitate to call...

What constitutes an "offense" or violation of condominium bylaws?

You really will have to bring the actual bylaws to an attorney. Condo bylaws are not government documents, so this would be enforced (if at all)...

Do I still need to keep a separate bank account for a received security deposit if my tenants are renting "at will" ?

Yes, you do. Security deposits are treated the same for every type of residential tenancy.

If you have owner's title insurance then the matter will usually be fixed through them. Also, if an attorney issued a "certification of title"...

Is it legal for the owner/manager of a bar to pool tips with another bartender?

You're right: this is almost certainly illegal and is a violation of the Wage Act. You would be entitled to triple damages plus attorney's fees....

How do you contest a will if you are in prison?

To answer the specific question: you can hire an attorney and contest a will even if you are in prison.