Spatial Join in ArcPy – one point shapefile to multiple polygon files

How do you spatial join points to polygons?

To begin making a spatial join between a polygon layer and a point layer, right click on the polygon layer in the table of contents, and choose Joins and Relates>Join. The join dialogue opens. Make sure that in the dropdown at the top you have chosen “Join data from another layer based on spatial location.”

What is the difference between spatial join one to one and one to many?

A one-to-one operation will join a single feature from the join features into the target features. This is usually the first record the spatial join tool finds. But a one-to-many operation will join all the features. It does so by creating multiple overlapping records.
 

What is the difference between a join and a spatial join?

A JOIN simply pairs up rows based on whether a condition is true. In a spatial join, the condition is just a geometric operation on geometric data (e.g., two polygons must intersect). This does not change with spatial queries.