"I have been in the US for almost two months now. We processed our K-1 visa with you guys for only eight months from start to finish. Do you have an expiration to when you can process?"
There is no expiration for when you must adjust status explicitly. However, keep in mind you will be out of status after your K-1 authorized stay expires because usually that is stated in your I-94 when you enter the United States. If you're out of status, you cannot legally work, and you cannot travel outside of the United States. There's a lot of things you can't do.
It might become an issue later when you're doing your adjustment of status because now they are really actually scrutinizing every petition they receive. So, at RapidVisa, we highly suggest that you do your adjustment of status right away after getting married. To start your adjustment of status, go here.