Hi Alison,
A perspective from the go-it-alone side of things...I've considered partnering with a good friend on deals and had to ask myself, "am I partnering because I just like this person? or because it makes sense for the investment?".
If both partners are new to investing and both partners don't have much money to throw at a deal, partnering might not make as much sense as simply being accountability partners for each other. When a partnership may make sense on the other hand is when you have time to work on the deals and the other partner has the money and wants to be more passive.
I chose to keep my investments as solo deals unless it really provides an obvious benefit. If I can't immediately see the benefit, it may not be the right time.
If you choose a partnership, make sure to use a lawyer experienced in structuring partnerships to write up your agreement. This is not an area to try and save money on. Good Luck!