Congratulations guys! I am currently MS1 at SJB and I'll be more than happy to answer your questions/concerns if any. Due to time constraints, I will be brief for now but will be posting more information soon (studying for neuro). Regarding housing, it all depends on your particular situation. Jaymi will send you a "welcome package" with a list of housing available near campus, however, I don't think is helpful. So, like i said, it comes down to your specific situation/preference. For those coming with family, you will need to make arrangements before coming to the island. Caguas has only 1 hotel, the Sheraton, and is expensive. For those coming "solo" you can find roommates and stay at very nice apartment complexes. Although you will not encounter much traffic if you decide to stay in the metro area (san juan, carolina, guaynabo, etc) and drive everyday to caguas, I really recommend staying in the south Caguas area, because traffic here is NEVER predictable.
Also, MS1's will be leaving for summer research and many will be sub-renting their apartments/houses at a very low price, so you can also do that and look around for places in the meantime. Anyhow, you MUST first check clasificadosonline.com for more info. Places I recommend are Los Prados, Vista Real, Bosques San Antonio, Santa Cecilia, Turabo Clusters. I can gladly post that info during the next weeks.
You'll probably begin classes in mid-June, but will need to register around the last week of May. You can authorize one of your classmates to register on your behalf though, so you don't really have to be here until mid June. You will "start" with a professionalism course for about 4 weeks, will have your white coat ceremony at the end, then a couple of days off and then start (this time for real) with biochemistry/genetics. Be sure to have fun/know the island during that time.
De nuevo, felicidades y duerman mientras puedan, estoy a la orden. Mucho éxito.