1) You need a power of attorney from, or if she is mentally incompetent, legal guardianship over, your mother to have the legal authority to lease her home. That you will inherit is irrelevant, since it will not become yours until she passes; it is currently still her property.2) If you have the legal authority, you can rent or lease it.3) The income (net income after costs) from renting it will be your mother's income (since it is her property) and will be reported in her tax return with any other income (e.g. social security) she has.4) The income can be used to pay for or maintain the home.