She can't put him on the lease because he can't pass the screening so he's just a "visitor".

It's been changing state by state, for me 5 to 8 years or so is not a long time Grin.I just checked a couple articles talking about how all states now accept them, some kicking and screaming, which was not true when I made my decision. 

if a visitor to open house person is currently working with an agent and they purchase the property after attending the open house, am i entitled to a commission

If a provider can't or won't provide the basis for their stats, can't or won't schedule a visit or 'just can't accommodate you', if they don't take the time to answer questions fully - RUN.  

Renters insurance covers a tenant’s possessions and liability in the event that a visitor is injured on the premises; Landlord’s insurance covers the landlord’s property and liability.

Scream from the rooftops, tell your friends, share us at your local REIA, email your family, Tweet about us, etc.

It's a liability that just screams-please sue me!

There are times when I've gotten an inquiry on a just less than 32 night reservation request and I've pointed out to the visitor that, here in Cambridge & Boston, there are 17% local & state taxes on any reservation less than 32 nights.

Anything screaming to be added, changed, or deleted?

I use Postlets.com to save me time in reposting...But I have most success with Open Houses...most visitors to my open houses found it from CL-great buyer generator!