1- The form and the substance of contractual obligations shall be governed by the law of the state in which the contracting parties are both resident if they are resident in the same state, but if they are resident in different states the law of the state in which the contract was concluded shall apply unless they agree, or it is apparent from the circumstances that the intention was, that another law should apply.

2- The lex situs of the place in which real property is situated shall apply to contract made over such property.