What do we need to do if we have 2 properties that is in my great grandmother’s name & cousin name who have been deceased for over 50 years?

Unfortunately, if the property is held in the names of two people who died over 50 years ago, clearing up the title is NOT going to be a quick process at all. Even figuring out who actually owns the property will be a huge task. It sounds as if the original owners' estates were never dealt with and the property was never retitled. At the original owners' deaths, their heirs likely received interests in the property, subject to claims of creditors and the payment of expenses. When the heirs died, the property likely passed to their heirs. After 50 years there could actually be tens or even more than 100 people who actually own the property, and now you need to figure out who they all are and get them to agree on what to do with the property. Your grandmother having lived there and paid taxes for years makes no difference to who actually owns the property, and her actual ownership interest may be extremely small.   I know you said she has already begun working with an attorney, which is good, but she may also want to contact the Georgia Heirs Property Law Center- https://www.gaheirsproperty.org/ This is a group that focuses on helping families deal with exactly this kind of situation. They may not be able to make the process move any faster, but they may be able to help.   Best wishes to you and your grandmother.