How can Lady van Tassel inherit all of the van Tassel and van Garrett lands after Katrina dies if she already faked her own death? Kinda hard to show up in probate court and stake your claim to your husband's estate after they've already interred your corpse next to his.
She could just say it was a case of mistaken identity. The only people to whom the scar on the hand meant anything were Katrina and Crane, and Lady van Tassel was already working on that. Once the people who could raise a fuss were out of the picture, she'd show up, say she panicked and fled into the woods or something, and receive her inheritance.
It was 1799; neither the telegraph nor the telephone was invented yet. So news of her death or faking her death, wouldn't be out until it was sent by snail mail. As far as the nearest major city was concerned Lady Van Tassel was still alive.
Here's a better one: What did Lady van Tassel expect to do with all of the van Tassel and Van Garret lands given that the population of Sleepy Hollow was abandoning the area like rats leaving a sinking ship? Step 1: raise Headless Horseman from the dead to kill all her rival heirs And Then What?
This was back in the day when land = power. And also wealth. If Lady van Tassel's scheme had gone to plan she would've had a lot of land held in her name. She could take all the land and turn it into a plantation. Or maybe since she was a Wiccan she had some sort of mumbo-jumbo "one with the land" philosophy. Force everyone off the land and then just...live on it.
Or she could have sold it all for a nice profit (since if the police men at the beginning are anything to go by, the only ones really buying into the superstition are the people who live in Sleepy Hollow, so she could have always sold it to someone not form the area). Since to this troper, so much of her bitterness seemed to be because she grew up poor so even selling the land would have entitled her to a very comfortable life.
When Brom and Ichabod fight the Horseman, the Horseman seems disinterested until they run away, and which point he drops down from the other side of the bridge to continue the fight. Why would he bother to stop them from leaving him alone if that's what he wanted in the first place?
I think Brom pissed him off a little too far.
Maybe the Horseman decided that Brom probably wasn't going to ever leave him alone, and that if he didn't kill him he could look forward to being shot every time he rode into town. Not a major problem, but definitely an inconvenience.
Also, the Horseman probably found he was enjoying himself. An opponent who could fight back, for the first time in a long time, had to make a nice change from being forced to kill terrified civilians. The man used to be a professional soldier, after all.
Why does Lady Van Tassel look so much older than she should? During her motive rant she claims that Katrina was already born when she and her family were kicked out of their home. She couldn't have been more than 10 in the flashbacks, and yet Miranda Richardson is 22 years older than Christina Ricci, and it shows in the movie. Even if Katrina is supposed to still be in her late teens, Lady Van Tassel should be in her early thirties, at most.
I dunno, premature aging due to a rough upbringing? Maybe the dark arts take a physical toll on the body? Remember, her sister didn't exactly look minty fresh when Ichabod met her.
Why has nobody noticed or mentioned that Andy's body isn't in the morgue anymore?
Why does Sleepy Hollow have so much stuff in it? My home town is about the same size and we don't have a hospital or a police station that big.
In real life, Sleepy Hollow is a town of about 9,000, a bedroom community 30 miles from Manhattan. In the pilot of this show there was a brief shot of a road sign showing "Sleepy Hollow, Population 144,000." Presumably they made it so big partly to justify the police resources.