At this point, I would probably agree that hard work and proper diet is what she needs. The diet should be doing most of the work for fat loss, so if she isn't seeing progress, the diet is off. I'm not sure of what her limitations are, so I dont know what kind of cardio she can do, but cardio would help.
T3 is quite an advanced compound, for someone that is already using steroids, to support muscle tissue because T3 will burn up fat, but it will also burn muscle. I would suggest getting the diet in order first so that she knows her response is due to the food. Then if she is interested, consider using some clen. Starting at 40mcg and slowly adding 10mcg every couple of wks, taking it up to 80mcg at the higest, and staying on clen, but no longer than 10-12 wks total use of clen.
Best of luck to her