If the student bring in girlfriend/boyfriend or family/friend visitors to stay overnight in a shared apartment, it may create potential issue.  

She also threatens to block entry if I wanna take visitors to see the apartment. what’s the best action, fellow landlords?

I drive thousands of targeted people to my website through Facebook Ads, and have over 100 online citations that direct visitors to sire. 

Hi Account Closed,A "Squeeze Page" is a one page website that has information about your business and a form where the visitor can enter their information.  

I know I have had visitors who would not have their daughter son share (7 and 10 yrs.) go figure. 

He is a guest or visitor of your tenant.If the guest is staying there overnight for longer than your lease, your tenant is violating their lease.What does your lease say about utility use and who pays?

Here is a summary of what I have gleaned:Building Attributes: one level, ground floor, elevator in multistory buildings, no steps, universal design, wider doorways, smooth floor coverings without throw rugs, chair height toilets, hand rails, grab bars, bathroom near bedroom, laundry in unit or close by, good lighting, less square footage to take care of but enough to comfortably move around and to entertain visitors, close to bus stops, close to medical facilities, close to activities that interest seniors, garden, front porches, backyard patios/decks, quiet, warm, safe.Landlord Attributes: respectful, attentive, face-to-face communication, willing to adjust speaking speed and volume as needed, willing to do things for tenants to keep them off ladders and step stools (change light bulbs, hang pictures, etc.), willing to adjust policies and procedures to accommodate needs (alternative ways to pay rent, use of telephone instead of texting, etc), genuine interest in seniors' wisdom and legacy, willing to check in on the safety and well being of residents, willing to assume responsibility for yard work, snow removal, and keeping outside pathways clear of debris, willing to help tenants connect with community services as the need arises (cleaning help, food prep programs, senior services, etc.), service oriented.

These users consume millions of pageviews every month, and in 2013, we saw well over 5,000,000 unique visitors to the platform.

Will use for family/friend visitors as needed, but short-term rent the bulk of the time.

Orange County, CA where I live has a lot of visitors from the UAE, during their summer.