third party contracts

Can someone help me with information on third party
contracts? I had a third party contract that said
(somewhere in the fine print) that I would be paid
after the contractor was paid. I was being paid
monthly, two months after the work period. The
contractor did not pay me for the last month, claiming
that he had not been paid either. Do I have any legal
recourse? They have something called a 'mechanic's
lein' in the construction industry if a sub-contractor
is not paid by the principal contractor. Can this
apply to my case?

Thank you in advance for your advice.

A. Nirody

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