Point nameservers, check VPS settings, verify SSL Certificate

WE are moving our site from cloud hosting to a VPS and need someone to go into the new hosting and make sure the nameservers are correctly pointing to the new site from cloudflare, the ssl certificate works, and that everything on the VPS is correctly set. The site is already installed on the VPS, and I basically need someone to check and make sure everything is functioning as it should. I need this done immediately.