Buying appartment and good builder team in Kiev

Hello,have already 2 appartment in kiev.Everything going fine,just lost a little bit of money recently because of unreliable workers,but nothing too crazy really. Would take any advice,or knowlegable content from a brother;about buying appartment and reliable worker team(for building the appartment). Also if there is a real estate developper i’m here for buisness too.

Thank you.