1#重庆人8 J0 W6 Y: z) x1 s# K' u
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) I; K) w$ s. P4 {7 J( K6 M; ^ UIf the builder is responsible for rough grading and the certificate as per your contract signed, then for sure, your builder has to do whatever needed to get a pass, whether it is a retaining wall or anything else. Talk to your lawyer to find out.