The Campaign is directed at law firms and businesses having 10 or more alumni.
( ( The Campaign ) ( ( is ( directed ( at ( ( law ( ( firms and ) businesses ) ) ( having ( ( ( 10 or ) more ) alumni ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN Campaign)) (VP (VBZ is) (VP (VBN directed) (PP (IN at) (NP (NP (NN law) (NNS firms) (CC and) (NNS businesses)) (VP (VBG having) (NP (QP (CD 10) (CC or) (JJR more)) (NNS alumni))))))) (. .)))
The campaign is directed towards anyone with a checkbook. 
( ( The campaign ) ( ( is ( ( directed ( towards anyone ) ) ( with ( a checkbook ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN campaign)) (VP (VBZ is) (VP (VBN directed) (PP (IN towards) (NP (NN anyone))) (PP (IN with) (NP (DT a) (NN checkbook))))) (. .)))