Place sliced chicken breast in a big bowl.
Mix sofrito, lemon juice, garlic, adobo, and oregano into the chicken breast.
Place pot on stove and turn burner up to a medium.
Add 1 tbs oil into the pot.
Place marinated chicken into the pot.
Add the 1 1/2 cup of water, chicken bouillon, and 3 tbs of tomato sauce to the pot and mix well.
Let chicken come to a boil.
Add potatoes and mix everything well.
Cover pot with the lid and bring the heat down to a low.
Let cook on low for about 30 minutes or until chicken is pull apart tender.
Remove lid from pot, bring heat up to a medium and let chicken cook for an additional 10 minutes (this will help evaporate the liquid)
Shred the chicken using 2 forks.