Tenants have extra family members staying

[Matt Barker]

Hey all. Starting to build my rental portfolio and my tenants came to me last week asking if their 2 family members could stay at the home for about 1 month while they transition from Vegas to STL. The current tenants are an older couple and have been nothing but great! My concern as is my tenants is that the family members have a dog that would have to stay there and it specifically said no dogs in the lease unless discussed with me. (Hardwood floors redone) Do I ask for a no refundable deposit for the month and limit it to one month? Help!