Do you have to pay monthly for minecraft?

No you don't have to pay monthly, it is a one time payment, there are no subscription fees or add on fees.
You can surely recover your account as long as you still have access to the email address you registered under. Just keep in mind that there are 'Minecraft accounts' which log in with a username set when the account was created, and 'Mojang accounts' which sign in using the email address.

No it is just a one time $27

No, it is still a one-time payment.

You just need to recover your account.