We invested with sina and hired “sina architectural designs” for a pre construction located at 105 bayview ridge. Long story short, we ended up trusting sina with our investment (over $1.2M) and it went to zero. He totally defrauded us, we had to hire lawyers to sue him for damages and won but he has yet to pay us back even a single dollar. I would NEVER recommend using sina or his company for anything. Buyers/investors beware!