Responses
Like others have already commented, I pronounce it the same as if it was spelled "Leticia" instead of "Letitia". Would love to write it using the international phonetic alphabet, unfortunately I'm not too confident on what symbol should represent the "sh" sound at the end (I always struggle differentiating them).
But the spellings of the pronounciation from the earlier replies are the correct ones, which would be le-ti-shia/luh-tish-uh.
How does everyone pronounce her name in your head. I say Le-tia. I really don’t know how to say her name.