The symtoms you describe often happens in low light. have you grown this one in excessive shade or indoors ?

Another time which leaves start to die at the bottom and gradually turn brown is when the lily is affected by boytris. This happens most often due to overwatering. It only takes one night for the lily to get affected by the spores.

Nutrient burns on the leaf tips is most often due to build up of fertilizer salts and/or very acidic conditions in the soil. A relatively small pot can cause this especially if you water with fertilizer on regular basis (or the potting soil had fertilizer incorporated) and/or drainage is not perfect.

In the ground, you can usually offset this by adding a bit of lime to increase the soil pH (higher soil pH will prevent the solubility of the micronutrient metals).

Indoors, the use of water with floride (most often found in tap water in USA) can also lead to tip burn.

The good news is that your lily is ok.
Keep growing it, and then just plant it outdoors after it has finished blooming. It usually correct itself next year if the lily is in the ground.

Example of aluminum salts leaf burn on lilium lancifolium

Yeah i think its not getting enough light since its sitting in the back where it recieves no more than about... 5-6 hours of light a day.

And yes i did incorporate some fertilizer into the potting mix, as i thought it would be better. But i do not over water wth fertilizer.

I also have another lily bulb in the same pot thats coming up, starting to poke out of the soil. Should i transplant it from the pot into the ground. But since i live in an apartment building i have no ground space for planting it else where.

You can keep it in the pot. Try to give as much light as you can. You may eventually have to pot each lily up in their own pot.