Last trailer we had (an Open Range brand trailer), the frame came from the factory with mounting brackets to attach a rear receiver hitch. However, that particular frame was NOT strong enough to support a rear receiver w/ cargo holder (I was going to put a platform for generator on rear receiver). Luckily, I called the factory and found out about the frame issue on that model before attaching one. Factory said it wouldn't even support the weight of the receiver hitch without reinforcement.
In contrast, I've seen other units with rear receiver hitch at dealerships, so I'd say it depends on the particular unit in question. Dunno if the Laredo can or not, hopefully someone here does know. I do know that the CCC of it is only just over 1500 lbs, so that's not very much room for extra weight, especially once you factor in fluids in tanks, clothing (weighs more than one would think), etc.
2012 Keystone Vantage 32FLS