Finally, figured out a way to include a pic

Here is a link that might be useful: Unhappy peace lily

I think your plant looks pretty good considering the difficult things it's been through. They are tough and I think yours can survive if you will mostly leave it alone and be patient for a while. But first, your story and the brown tips on some leaves suggest the plant has suffered from root rot. Removing the unhealthy roots and moving it to gritty mix was a good move. But I question why you soaked the gritty mix in fertilizer solution. Root rot and all that repotting have probably killed off all the root hairs, which are what the plant uses to take in nutrients. I am concerned that you are risking fertilizer burn when the plant is in shock.

If I were you, I'd flush the pot with plain water until a couple of gallons have run through. That can save it if you've overfertilized it, and it can't hurt in the gritty mix. Then put it in a sheltered area with bright light but no sun. Allow it to dry out for at least a week. Don't fertilize again until it perks up a little. Peace lilies don't need as much fertilizer as most other house plants in my experience.

Ohiofem,

I just wanted to say thank you and a big hug for responding. I flushed the peace lily this morning and have it sitting under my grow light. It perked up a bit, not quite upright, but a definite improvement over it's prior state.