Dreaming that you need a lawyer means that someone will help you to solve your problems. Dreaming that youre talking to one means that you will receive bad news, you will have bad luck and its generally a bad sign.
Dream dictionary: someone pleading and asking for help from me dream meanings
To dream that you participate in a blood transfusion as a donor, is a sign, that you are willing to provide help and support to a needy person. If the dreamer receives blood, it is always a symbolism of important issues that will undermine your resources greatly, however, the severity of the situation can be alleviated through the intervention of an influential and devoted person.
To dream that you are underwater means that you feel out of some situation or relationships. Sometimes the dreamer who is underwater is trying to hide himself/herself from the world because he or she doesnt know how to act in certain situation. If you see the other person being underwater, it could have the same meaning if you were underwater and this person might need your help and support.