Hi Vito

Although we do not recommend changing the fonts (because you may need to do a lot of collateral changes - margins, paddings etc) you can use plugin such Easy Google Fonts 

https://wordpress.org/plugins/easy-google-fonts/

or

https://wordpress.org/plugins/use-any-font/

or for custom fonts

How can I add my own custom icons/fonts to the theme?

I forwarded your other remaining ticket to our web designer.