My mom gave me part of her mint plant, b/c I wanted some for my daily tea.
She said I needed to repot it b/c the pot she put it in was temporary.
Now some of the leafs are turning yellow.
I only have had it a few days and am ready to repot it. I was hoping someone here could give me some advice about long term care and daily maintence for this mint.

Water and sunlight and a pot big enough. Mint loves these three essentials.
You can always divide the mint and put it right back in the same pot with some fresh soil. No need to keep giving it bigger and bigger pots.
Do you know what type of mint it is?