When I rename the internal field name to match what I need it to be, it forces it to be all lowercase and for some of them it adds "yesno" to the name... I need it to be camel case like firstName lastName etc...
As mentioned by Derek here, HubSpot property names must contain only lowercase letters, numbers, underscores and they must start with a letter. As such, you wouldn't be able to set property internal name to camel case as it'll throw the following error: