Website updates

I am looking for for a person with experience editing wordpress websites and linking mailchimp newsletters. I have edited my websites myself to date but due to time constraints some help would get them to where I want them to be much quicker. I have three websites one needs to be transferred to a new hosting platform and comments switched off and made dormant. One needs a few design tweeks. The other needs a few amendments with login access for users and connection to mailchimp. Should take no more than 3 hours for someone experienced with wordpress.
***Prefer someone based in North London as I prefer to work in person either at my office!***