Contact the property. Tell them that you want to make reservations and bring your pet. Some properties have restrictions on the number, type, size, or weight of pets they allow. Ask about any non-refundable fees or refundable deposits required. Find out about any restrictions on the number and type of rooms available.
Some properties limit pets to smoking rooms or a certain section of the property.
Additionally, some properties have seasonal or length of stay restrictions on pets. Inquire as to whether your pet may be left unattended while in room and, if so, if the pet must be crated. In any event, you may want to consider getting a ground floor room to make late night bathroom runs easier. Announce your pet and inquire as to areas to walk your pet and areas that your pet is not permitted. While in your room.