This scam has been going on for years. Every time a storm blows through, the scammers are out in force. In some areas, police drive around checking on proper licensing, but that won't stop a scammer hard up for quick cash. These people will use any excuse to start a conversation, cleaning gutters, mowing lawns, sealing driveways, etc. They talk a good game, and always seem to be working nearby, and can give you a deal since they are already in the area, and even better if you can pay cash.
Unfortunately, we don't have time to monitor every eldery person that might fall victim to scams. Family can try to warn their parents, but many elderly are honest and trust people, and want to help anyone with a hard luck story. See link below to see how these "woodchucks" can bring down property values. I've heard their pitches before ' those trees just need to be deadwooded", or " deadheaded". Actually, what they do is kill many healthy trees.
Yes, woodchuck's, peddler's and solicitors can get a license. But, scammers that plan on screwing elderly out of their money aren't going have one, or show their targets anything. They want fast cash, and will disappear. The best thing to do is avoid engaging in any conversation with door to door solicitors. If they approach you out in your yard, just say " we already have a contract with a landscape company that does our work", or " Our son does all our tree and landscape work". If you don't get involved, then you won't have to deal with all the legal procedures mentioned in the following link.
Avoid scams and jams!
" Just Say No"
Jeff Pearl | Lic in VA