Can my neighbor legally let water run onto my property?

What people tried

Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.

1. 1
   Using existing sump pumps
2. 2
   Proposing solutions like a French drain or retaining wall to the neighbor
3. 3
   Considering building a barrier solely on one's own property line
4. 4
   Installing a channel drain across the driveway
5. 5
   installing a French drain
6. 6
   changing the grade with a retaining wall
7. 7
   regrading the property
8. 8
   talking to the neighbor to split the cost of running a pipe to the street
9. 9
   adding more gravel to level the driveway
10. 10
    putting dirt on the outside to hold it in and drain water away
11. 11
    raising the grade and adding a drain

In their words

Unedited, most upvoted first, each linked to the thread it came from.