Even if you have multiple homes, all of the homes belonging to your household must be on one HomeExchange account.
You are able to have as many homes on your account as you want. Simply click on "Add a new home" under the "Profile" menu found at the top right of your page.
The GuestPoints earned upon the creation of a HomeExchange profile are awarded only once and cannot be transfered. All efforts made to bypass this rule (false friend referrals, the creation of several accounts by one person, etc.) are prohibited.
You are more than welcome to add your partner's email to your account in the "Confidential information" tab in your profile so that your partner will also receive the information pertaining to your account (receipt of new messages, newsletter, etc.).