HELP!!!

Hello.

First I have to say I am not Chad (CazBandit), he passed away suddenly on March 27.  I have taken over his websites for now at least until they can be disbursed to others or shut down.

On his hpfanficarchive.com website, he has a banner that links to his Go Fund Me page asking for donations for server fees.  I edited the Go Fund Me page to reflect that is has become his funeral/memorial fund.

What I would like to know is how to change the banner on the website.  I am a complete novice.  Can anyone guide me on this?  I have access to all of his accounts, etc. so I can get into whatever is needed but I would need literal step by step instructions for dummies  😳

I am also wondering if someone can help me with the legalities of fanfic sites and how they work in this situation when the owner has passed away.  I see that many have posted that their stories are not for sale but I will not be able to keep the website going for the long term.  It would be an incredible loss to many if the site just closed so I would like to know whether I  can offer it for sale to help with funeral expenses.

Thanks in advance.

Kelly