There are multiple options as described HERE.
But I think this is the best solution.
To give a device to another person, follow the instructions below. If you have a Nest Aware subscription, make sure you cancel your subscription
Note: This action will clear your data from the device and can't be undone.
@joart thanks for reaching out. I understand your concern about linking the Nest device to your tenant's own account. Just to be sure, what Nest product are you referring to? How many Nest products are you planning to share with your tenant? If in case, it's about the Nest camera or Nest doorbell you may try the steps given above.
Looking forward to your reply.
@RXShorty I appreciate your helpful response.
Thank You for you reply. It would only to a thermostat for a studio. No cameras or ring doorbells or anything else involved. The simplest is best to be hooked up to his wifi. In other words if he bought his own nest thats how it would be done so the only difference is I will be paying for it. I have not figured out which nest we need yet ????
That depends on what you try to achieve, but as it is only for a studio, the Nest Thermostat E should do just fine. But it also depends on the heating system itself you are having.
For more information check THIS link.
You can read about the difference between the E and the Learning HERE.