@Jilayne0 Quickbooks isn't necessarily the right choice for just one property. You could use Quicken (cheaper, less complex) Simplifi (free) or just keep a spreadsheet. Quickbooks is expensive and is overkill for what you're doing.
You could probably use whatever interface your bank has. Banks generally allow you to designate categories for your income and expenses in your accounts.
STR finances are not all that complex. It's pretty simple tracking of income and expenses. I'm a bookkeeper....