Laravell/Javascript/PHP Coding Expert to fix a faulty website/laravell admin panel

Hi, I have a website that needs the live chat and other features fixing as per below (as i was scammed into a poorly coded website.) I have had the site checked and it is all mainly coded in laravel then javascript and php. I need someone who is an expert to fix the below things which I know and am told is not a big task (probably take 2-3 hours for an expert.) I am currently having the search engines fixed so that leaves the following items- 1) Some of the texts on the website need updating like the FAQ/Disclaimer/terms and conditions.. I believe this is simple really and basic PHP/HTML text editing will allow you to do this really.. (2) I need a tutorial making on how i can update certain parts of the website...I need to know how to update the homepage 'deals' section jpeg banner so that when our deals change with our suppliers i can change this with ease, how to update FAQ, terms and conditions and our disclaimer (texts) (3 The old freelancer made a 'live chat' button which was meant to link to an admin panel that I could log into and set away messages etc. I am told this was never coded to work or created, i have found a free live chat host (tawk) so I would want someone who can code/intregrate this into the website currently, this is probably the biggest job out of all of my list but again for someone who is an expert should be no issue. (4) I would like the site to look alot better on mobile alot more like how it does on desktop. I believe there is a way you can see how a site looks on different devices, so someone to test this and change it accordingly.