Parking Space question-please advise

[Kexin Ma]

I am new to being a landlord, and I just purchased a 3/3 double, which has a one car garage with a driveway that could potentially park a few more cars, but then it will block the car in front of  it. There are some on-street parking around. Anyone could provide some insight on how to rent this out better? Making one unit accessible to the garage and the driveway and the other have to park on the street? BTW, I am in the north, parking on street could be a problem when there is snow. 

Also, if I remove the deck in the back, and remove the garage, I could probably make the backyard into 2 or 3 parking spots. But that seems like a big job without gaining more parking spaces overall. But if that's worth doing, it could be a project down the road.

Any advise will be appreciated. Thank you!