Ahhh yes I forgot to mention I intended to purchase through davids/dvcrequest, they do have a cancellation policy but it isn't great so I will be buying insurance.I'm only going to reply to the DVC part of this (which is why I edited your post when replying).
a) Make sure you understand the DVC rental agencies' cancellation policies. Originally, renting DVC was a "no changes, no cancellations" thing. Now there is some flexibility, but you need to understand what it is.
b) Make sure you understand the layout and square footage of the room you are considering. In a DVC studio (except Old Key West), the second bed will be some type of pull-out, which takes up floor space when opened. I assume you also will need a crib or a pack & play for the baby; that takes up more floor space. If you will have a stroller or double stroller, that will take up even more floor space. Will there be room to walk around?
c) If you're sure renting points is right for you, then you need to understand the timing. DVC rooms can be booked 11 months out. Some rooms are harder to book then others; people who want to use a rental agency might contact the agency more than 11 months out to get on their list. So if you're trying to use DVC spending to meet a spending requirement for a new credit card, you have to think about:
1) When will you be paying a deposit to the agency
2) When will you be making a first partial payment to the agency
3) When will you be making a final payment to the agency
4) What's the time lag between applying for a card and having the card info so that you can start charging to it? You want to be able to charge # 1 to the card.
5) For the credit card you are considering, what are the timing rules for meeting the spending requirement? For example, if you have to meet the spend in 3 months, will you be be making payments 1-3 to the agency within 3 months? Or will payment # 3 be more than 3 months after payment 1, and thus they won't both qualify for the spend?
I assume you are thinking about using an agency to rent the points. People sometimes rent directly from an Owner they find here on the Dis, but I don't think private Owners take credit card payments. If your goal is to use your DVC rental payments to meet a minimum spend on a new credit card, I don't think renting from a private Owner will work.
Those are all great pointers that I did not consider, the other CC concern Im having is deciding which card will give me a greater amount of points for this travel purchase, but also not picking a card that has a weaker point value than others.