Question
Darlene,
I hope you can help!!  I'm in charge of saving my sister-in-laws 20 year old peacelily.  She got it when her father died, so it is very sentimental.  It's in a 14" or so ceramic pot.  The middle plant is growing very "leggy" (Not full of leaves and you can totally see through the plant)and the leaves grow out to the side instead of staight up.  There are also 5 other peace plantlets growing from a distance around the plant.  They too, are sparce and growing kind of flat like.  I thought maybe it need to be repotted in some fresh soil, but reading other questions/answers on this site, I'm real nervous now on repotting.....anything!  I'm not sure how much light the plant had been receiving. When I picked it up, it was about 10 ft from an east window, with no close sunlight from the west.  It would have been watered with city water, but once again, I'm not sure how often.  It does have a few flowers, though, and I asked if she fertilizes it and she said yes.  I was told by a florist that it's surprising it's lived this long, that these types of plants don't have that long of a life span.  I can send a picture if you would like.  
Thanks for any help you can give!!

Answer
Lisa,

I received your pictures. I would repot it in the spring but back into the same pot using 1/2 cactus soil and 1/2 potting soil and bury the plants slightly deeper. Mine sits ablut 5 feet from a south facing window. They need very bright light but not a lot of direct sun. A bit of morning sun from an east window should  be fine.

Water it well when you water it but then do not water it again until it is dry as deep as your fingers can reach. It does not like wet feet so be sure it drys out between good waterings. Regular fertilizing once a month with a bloom building fertilizer would be good for it. If it eventually dies she should buy another in memory of her father.  The florist is right they are frequently not long lived plants. Good luck.

Darlene