lease agreement

Lease agreements

Q: Please advise on lease agreements:

1. Is it necessary for a formal lease agreement contract to be in conformity with the Shariah? I understand that any faasid, baatil, or haraam conditions made compulsory by the Government will be excused.

2. Also, is it possible that on account of a lease agreement with faasid, baatil, or haraam conditions, the rent the lessor receives will be haraam money?