Lease buyout from Kia

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I’m in Maine, and want to start the process of buying out my leased 2020 Forte from Kia Finance, to sell it back to a 3rd party. (Unfortunately, I haven’t found a Kia dealer who’s willing to match Carmax’ offer).
To anyone who has bought a lease from Kia Finance recently - How long does it usually take for them to release the title? Any other tips? Thanks so much!