Junior may have wrecked the car and daughter may have attained the age for orthodontia.
( Junior ( ( may ( have ( wrecked ( ( the ( ( car and ) daughter ) ) ( may ( have ( attained ( ( the age ) ( for orthodontia ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Junior)) (VP (MD may) (VP (VB have) (VP (VBD wrecked) (SBAR (S (NP (DT the) (NN car) (CC and) (NN daughter)) (VP (MD may) (VP (VB have) (VP (VBN attained) (NP (NP (DT the) (NN age)) (PP (IN for) (NP (NN orthodontia)))))))))))) (. .)))
Junior may have wrecked the car and daughter may need an orthodontist. 
( Junior ( ( may ( have ( wrecked ( ( the ( ( car and ) daughter ) ) ( may ( need ( an orthodontist ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Junior)) (VP (MD may) (VP (VB have) (VP (VBD wrecked) (SBAR (S (NP (DT the) (NN car) (CC and) (NN daughter)) (VP (MD may) (VP (VB need) (NP (DT an) (NN orthodontist))))))))) (. .)))