For example, if I were choosing a house I'd live in, usually one house just clicks with me vs the others, aka, there is certain styles of kitchen I like etc and certain location in a neighborhood( not facing the main road and not at the entrance of the community bc I don't like noise etc).

Kitchenette 2 beds and separate entrance.

This half of the land will have its own utility connections and its own entrance from a street behind our property. 

My wife and I house hack currently by Airbnbing out a private entrance/non shared part of the home (more info on another post here if you're interested).

Post on the back of the entrance door or some other wall a short list of rules including a mention of the risk4.

I'm moving to Rockville, MD next week for work - a lot of the homes in the area have completely finished basements with their own entrance.

Entrances- if you don't have foyers, put them in. 

Other factors to consider are: square footage of the room, whether the room has a private bathroom (and if not, how many housemates does the person occupying that room share their bathroom with...I'd recommend avoiding properties where more than two housemates have to share a bathroom), special amenities of the room (for instance, a skylight, vaulted ceilings, a separate entrance to the room, a walk-in closet, a location that is separated from the rest of the house, etc. are all amenities that can make a room more valuable).  

It also has a free standing guest house with separate entrance and yard that will make a great air bnb.

4) Opportunity area: lack of closet space (especially 2nd floor), no mudroom and only 1 front entrance.