Can I give someone power of attorney to sell my property? Yes. This special power of attorney allows your agent to sign a deed for the property.That is not your concern. A Power of Attorney (hereinafter "POA") gives another person the authority to make personal and financial decisions on the principal's behalf. If I have durable power of attorney can I sell property? It is a farm, belonging to my mother, but she does not live. Our San Antonio estate planning attorney can help create durable medical and financial powers of attorney. Call us at 210-535-0870 for a free consultation. Power of attorney can only be used to sell a property before death. After the principal's death, the property must be sold through the probate process.