Good Morning, 

Thank you for contacting the U of M Extension Service. 

I am not sure I am understanding what you need. Did you move to the house with the garden and you cannot identify the plants? Are the trees in the garden volunteer trees you need to remove? 

Master Gardeners do not usually do home visits. Here is a link to the Hennepin County Extension Master Gardeners  https://hennepinmastergardeners.org/contact-us/

You could contact them and ask if they do home visits. 

Here is a link from the U of M Extension Yard and Garden website about landscape design: 

https://extension.umn.edu/lawns-and-landscapes/landscape-design

You can search this website for any residential gardening information. 

Good Luck!