Inherited tenants

[David T.]

So I just purchased my first home in April and it is a duplex.  The tenants have thus far paid on time.  However they have been quasi-problem tenants.  So I am just looking for some thoughts/advice from the seasoned pro's here at BP.

1.) The NEVER lock the common entrance door despite numerous requests and a sticky note left on the garage door opener that they do so.

2.) The garage door didn't close when I purchased the home.  The driveway is tight and I am guessing the previous tenants hit the track/wall and knocked it out of whack.  I have since fixed it and replaced the opener.  They consistently leave the garage door open all day when they leave despite repeated request to keep it closed when they are not parking or leaving.  And also left the aforementioned sticky note.

3.) Parking is an issue in my area.  Some houses don't have drives.  Most are single car.  My place fits 2 cars in the garage.  However if a 3rd car is in the drive its a game of shuffle.  They have "friends" leave their car in the drive.  As of yet it hasn't been an issue other than blocking my getting into the garage with my car.  But if it happens when my car is in the garage what is my recourse?  Can I have it towed or do I need some sort of lease addendum specifying this is not acceptable?

4.) The unit is a 3 bedroom.  I inherited the tenants with 1 month left on their lease.  1 of the girls moved out at the end of the lease.  The other 2 stayed and paid the full rent for 2 months on their own and have now found a 3rd roommate.  Thus far it hasn't been an issue however they requested to maintain the same payment arrangement as the previous landlord which is via paypal.  My concern is that the rent comes in at different times.  ie 1 will pay on the 1st another the 2nd.  Should I force them to give me a lump sum? 

Thanks in advance for any insight.