Randallstown Community Center

Yes,

Not sure I doubt it though I would call Baltimore County Parks and Rec they would probably be able to tell you where to go

Yes if you call and make a reservation

Only for the pool, it's run by the YMCA.

This is a question that nobody can answer for sure. Unfortunately, you'll have to call them and ask.

It is approximately 150 meters in lane 1.

Yes

Depends what you want to do. You should give them a call to find out the hours first and then talk with them to see if you need to being your own equipment.

There is a pool at the family Y swim center next door, but I don't believe the community center and the Family Y are affiliated.

Yes

The basketball courts are only open sporadically. You usually have to call them everyday before going to find out what's available.