Grammatically speaking, “The owners driveway & the other’s trail easement,” is not a complete sentence; therefore, it could be open to interpretation. In addition, the word “other’s” is vague without seeing it in context. We assume it means “other person’s.” Also, the word “owners” is missing an apostrophe. We are unsure if it is one or more owners. In American English, the ampersand represents the word “and.” On a map, the phrase could mean the intersection of one owner’s driveway and the other owner’s trail easement. If this is part of a legal document, we suggest you consult a legal style manual. Legal documents often have their own set of rules.

Does this notation mean the last word pertains to both phrases or that it is A & B and the final word “easement” pertains to just B?

The owners driveway & the other’s trail easement.

We literally interpret the “&” to mean “and by itself.” So that the first phrase notes a use without the word easement modifying it (A), and the second phrase is modified by the word easement (B). Two distinct phrases. It might help to know that the first phrase only states what is already a property right of the owner (their driveway) and that the other’s easement is over an acre in size. 1998 usage

In formal writing, we favor “Marie and Chris.”

If the official name of the company uses the ampersand, we recommend writing it that way.

We recommend writing “I would like the menu to contain peanut butter & jelly and ham & cheese sandwiches.”

As the post states, the more sparing you are with ampersands in formal writing, the better. However, the ampersand could be considered acceptable if you are looking to save character space or add subtle visual appeal to a website. In particular, in marketing content and on web pages, you may often see the ampersand in content heads and subheads. In body content, ampersand use may be sparser (e.g., used only when part of an established phrase or a proper name, such as a company name).