@Brie Schmidt
Who's the lender on the program? Interest rate risk is always a concern, that's why it's better to get past the 2MM loan size where your options open up a little more with Fannie/Freddie/CMBS/Life.
With that being said I'm in a similar situation with my portfolio however most of our loans are 20 year AM, in the low 4's, and 5 year ballons.
I would probably evaluate the 7.25% 30 year fixed loan program. Are all things equal to your other loans? I.e. LTV, org fees/closing costs, recourse (limited/full)? How about pre-payment penalties? I have to think the 30 year fixed program has a pre-payment program. Is the loan assumable?
None of my loans have pre-payment penalties and my closing costs are extremely loan because of my current local bank relationships. I really don't think rates will sky rocket quickly, so I figure I can lock in another 5 years as rates start to climb up. However a huge rate adjustment can definitely affect cash flow, especially if you are coming up on capex.
However it depends on your goals, are you planning to hold these for the long term? Then it might make sense to lock in a decent rate especially if you're currently in the 5's. However make sure you plan for capex as refinancing will only be the right option under the right circumstances.
I will also add that I saw James Bullard (President of St Louis FED) speak in Chicago at a CFA Institute event a few months ago. It was really interesting to hear his predictions and although he basically said the FED can't accurately predict the next 5 years he did think the government would get involved if rates were increased & the economy hit a decline (more QE). Essentially meaning that interest rates will be raised slowly over the next few years.