This is a common question: can I organize an exchange using my account for someone else?
The answer is no – unless you are planning to travel with that person, of course.
Your HomeExchange account is strictly private and limited to your household (only one household per account): only members of your household (i.e., people who live under your roof) are allowed to travel using your account.
Of course, each (adult) member of your household is free to bring along whoever they wish – as long as the hosts are informed, naturally.
It is therefore NOT allowed to:
Organize an exchange with your account for your friends if you (or a member of your household) are not traveling with them
Organize an exchange for your grandmother who will be traveling with your 2-year-old daughter if you (or a household member) are not accompanying them
Add your grandmother’s house, your cousin’s house, or your neighbors’ house to your account – they must each create their own HomeExchange account
It is perfectly allowed, however, to:
Travel with friends (as long as your hosts are informed)
Organize an exchange for your grandparents if you or another (adult) member of your household is accompanying them
Allow your 18-year-old daughter to travel without you, with a friend
If you do not follow these principles, you may face sanctions. In fact, any member who notices a breach of these rules is encouraged to report it using the “Report abuse” button available on each listing and in the messaging system.
Why these rules?
HomeExchange is built on a trust-based community: you want to be sure that the members staying in your home are indeed the people described in their listing, who are also exchanging their own home and earning GuestPoints by hosting in return.
Additionally, members who do not follow these rules will not be covered by HomeExchange guarantees.
Do you have questions? Feel free to ask in the comments. We wish you wonderful exchanges 
This is a really good point you have raised. I think with Home Exchange the most important this is to communicate well with your guests. In advance of their stay I always have a really open dialogue and generally a good chat with our guests - often via Facetime or on WhatsApp. I always ask who/how many people will be staying in my home. You could even ask for a list of the names of those staying for reassurance.