Incoming Rehome Advice

Hi. I am looking for any advice I can get. Due to circumstances leaving my grandmother incapable of caring for her 25 ish year old African Grey, the baton is being passed down to me a bit sooner than I was expecting and have not had any time to prep.

Heres what I know: She has not been let out of her cage in well over 4 years. She has a somewhat under control plucking habit. She has bitten my grandmother very hard before, supposedly with "intention." She apparently has a desire to lure you in and then to try and bite you. Her wings are not clipped nor will they be. She has been on a somewhat alright diet, her beak and nails look well maintained. She has a singular perch and the same dirty destroyed toys she's had her whole life.

I currently own a dove, so while she is not my first bird, she is my first parrot. I live in a house so screaming is not an issue although in all the time i've known her she has never been a screamer. I know to start very slow and work at her pace.

I'm looking for really any advice to help socialize her when she arrives. (no ETA yet, just this month I know) I have an avian vet lined up who is actually very close. I have a lot of time and no real commitments so I can shower her in the love she desperately needs.