There are non-profit legal services providers that represent people of limited means, however, they may not offer legal services in this area of the law. Also, if you are a legal or beneficial owner of this apartment complex, the value of your ownership interest could disqualify you from receiving free legal services. I would recommend that you consult with a Certified Specialist in Estate Planning, Probate and Trust Law. You can find such specialists listed on the California State Bar web site. A Certified Specialist who handles trust litigation matters may consult with you for a limited fee which would include reviewing any trust, estate, or other relevant documents you have, determining how the property is currently titled, determining the value of the property and the value of your interest in the property, determining what your rights are with respect to the property and against your aunt, and outlining a recommended course of action, including litigation if necessary to recover your interest in the property and any back rents owed to you. Then if you decide to proceed with litigation, it may be possible to borrow against your interest in the property to fund the legal action, or to enter into an agreement with your attorney to pay his fees after he has recovered your interest in the property and/or any back rents owed to you. Payment of his fees would come out of the recovery and would likely be secured by a lien on your interest in the apartments.