94 Corolla Gas Leak? And Bearings?, smell gas near passenger rear door Options

[phoenix1118]

I just had this confirmed by other smell testers...lol
I recently purchased this vehicle used from private seller and it had been in an accident. Only the front grill hood and fender were damaged and that has been repaired. So now I am doing the minor maintenance/repairs.
Any ideas what the problem could be? There is a definite smell of gasoline. Yesterday I noticed it on the passenger side of the car. But a week or so ago I could smell it on the drivers side??? Only noitce it after it has been driven. I do not see any obvious leaks or anything on the ground where parked.
Also, how do I know what the "squeech, squeech, squeech" sound is when I turn to the left going forward and in reverse? Is it bearings?
Thanks to all for any help!