Many dreams of in-laws will connect to waking-life issues sparked by the relationship you have with them. However, you can go to a deeper interpretation by considering them as character aspects of your own personality. In-laws are similar to parents in a dream, but are more connected to who you chose as a spouse and the challenges of marriage.
(See Family Members.)
To see your in-law in your dream represents a working relationship which can take many different turns.
The dream may also be a pun on being more careful and playing by the rules. You can also apply this meaning to dreams about your current boyfriend or girlfriend’s parents.
To dream of your daughter-in-law, indicates some unusual occurence{sic} will add to happiness, or disquiet, according as she is pleasant or unreasonable. ... daughter-in-law dream meaning
If one is required in his dream to circumscribe to the limitations placed by God on man’s freedom of action in the world, or if one asks that such judgment be exacted in his case, his dream then represents paying one’s debts, or respecting one’s limitations, or marriage to protect one’s chastity.... establishing the divine laws dream meaning
An omen of serious business troubles ahead of you. Do not start upon any fresh or hastily-considered plan, for the stars do not foretell your success. Do not lend money, for you will not receive it again, nor should you spend too freely after such a dream.... law, lawsuit, or lawyer dream meaning