Being without an article of clothing in a dream is actually kind of common. It may indicate feeling vulnerable or having your inner feelings or secrets exposed.
You're right about the first part having to do with my treatment at the hands of the permaculture gang. The latest things they've done are mindboggling to me. Their class was finally about to start, the one they were supposed to begin teaching in April. I had paved the way, obtaining special insurance and standing by to write them their first checks. But instead of submitting their invoices as they always have before, they removed me from the board and bank account and wrote their own counter checks for more than half of the Guild's total assets. That puzzled me, because I never have failed to give them a check for what they asked for in the past. In fact, I hand carried most of the checks to them since the post office has become so unreliable.
What they did next was outrageous. They stopped payment on another instructor's check for work he had already completed and they cancelled the class midway through it, cheating two Hispanic instructors out of their pay and the students out of 32 hours of instruction. And they told the students they must transfer to their class, which costs way more and that they would not receive a refund. One of the students is having a letter drawn up by an attorney but I doubt if anything can be done.
