@Alexis696 This is how you and the guest should handle it. She books for one month, let’s say Sept 22 to Oct 21. Prior to reservation ending, on Oct 16, either she or you extend her stay on the airbnb platform to Nov 21, and so forth for each month she wants to rent. This way you are guaranteed getting paid as long as her credit card has been charged.
Now on another note. Since you are a brand new host, I would decline this request unless she has a minimum of 7 solid 5* reviews and also check how she has rated hosts in the past (min 5). The reason for this is because you need several good reviews under your belt to kickstart your business. If you rent to this guest and get a bad review, this will not be good news for your business.
Yep, I would decline.