Specific Power of Attorney _ Company is a legal document outlining the scope of authority given to an agent, known as “an attorney in fact,” by the principal. Under the special power of attorney, an agent is given the powers to act on behalf of the principal to make specific legal or financial decisions. It is also referred to as Limited Powers of Attorney (LPA) and is used as evidence of the principal’s authority to the third person with whom the principal may be dealing with.