a) This is a maple cultivar like a cultivar of Acer rubrum, the red maple. 

b) From the photos, it appears to be located just fine on your property.

c) From what I can see, you shouldn't have to worry. Flags indicate utilities below ground - electrical, cable, internet, water. Tree roots grow in the top 18-20" of soil. Water pipes and sewer pipes are located below the frost line (60"+) so they won't freeze, so not issues there. The tree roots will not interfere with the electrical, cable or internet lines either. However, if you are at all still concerned, contact your utility companies to come out and locate the lines / cables and let you know of any issues.

d) I cannot see enough of the tree to determine if there are any potential trimming issues / form issues. It is best to hire a certified arborist to assess any trees you are concerned about. We have a webpage that provides information for you on how to find an arborist: https://extension.umn.edu/planting-and-growing-guides/how-hire-tree-care-professional

Tree care guidelines - pruning, watering, etc. - can be found on our Trees and shrubs webpage.