Seeking summer housing for parents

We just had our 2nd baby and I'm hoping to help my parents find a place to stay for the summer to be closer to their 2 granddaughters. They are looking for:

- 1-2 BR, 1-2 bath

- accepts a small dog (13 pounds, 5 yrs old, fully trained/house broken)

- within about 30 minutes or less from Stanford at non rush hour times

- Dates flexible, 1 to 2 months between mid-May and late August.

Thank you!