I look at it this way:
Step 1 - Eliminate the furniture debt.
With that debt eliminated, then you can decide what to do with the furniture. With no emotional factors considered, does it really make sense to move all of it to AZ? If the answer to that is "No", then does it make sense to move any of it to AZ? If so, what are the exact (rational, justifiable) reasons for moving it? Those answers should provide a kind of baseline you can always refer back to when looking at other What-Ifs.
I'd probably be putting together a Costs/Benefits list, aka a Plus/Minus list, or Advantage/Disadvantage list. For example, start from the "Furniture debt is eliminated" point. Assume that you'll move some, but not all, of it to AZ. What are the Plusses and Minuses for the different ways of disposing of the remainder?
Give it to a relative -
- plus: the favor might be worth something in the future
- minus: might never return the favor
Give it to Goodwill:
- plus: may be tax deductible
- minus: you may not be in a tax bracket where it's deductible
Sell it on ebay or Craig's List:
- plus: cash
- minus: really hard to do with furniture in MA and you in AZ
Hand it off to a consignment store:
- plus: cash (eventually, hopefully), easier to manage remotely than ebay
- minus: might never sell, so you have to take it back
Hand it off to a relative to sell on ebay or CL:
... etc.
Personally, I like writing things down (really, typing it into a plain text file), even if I don't do any of them, because the process of writing things down helps my thought processes. For one, if I write it down, then I can go back and read it, instead of having to remember every niggling detail. It also helps me lay out sequences of actions when I can see them listed sequentially, and move them around. That helps avoid blunders like "Attach battery, then check for short-circuits", where the safe order is reversed from that (check for shorts, then attach battery).
Honestly, I'd also be looking at which decisions I don't need to make right away, vs. those that would be difficult to defer. One of my Rules-of-Thumb is "Never do today what you can put off till tomorrow, when you may understand the problem better". Or maybe that's just my rationalization for procrastinating.