As a result of a United States Federal court...

English as a Second Language English Vocabulary, Grammar and Idioms
1

As a result of a United States Federal court having found the site to be in violation of copyright law, the site has been permanently shut down.

Can I rewrite the sentence as;

As a result of a United States Federal court found the site was in violation of copyright law, the site has been permanently shut down.

2

That is grammatically incorrect.
This may clarify the statement:
A United States Federal court found the site was in violation of copyright law. As a result the site has been permanently shut down.