What do you do when tenants harass each other?

[Troy F.]

Hello BP,

I've got a tenant harassment problem and I'd like to know how you would handle this situation.  We'll call them tenant A & tenant B.  Both A & B pay on time, every time.  Both take care of the property like it is their own.  Recently a friend of Tenant B parked in tenant A's space.  In response tenant A did not knock on the door and ask them politely to move their car nor did he call me and ask me to reach out to the tenant. Instead he called the police.  Not an ideal way to handle the situation in my opinion.  Other than this specific example they just aren't very cordial to each other.  I'd love for them both to continue to live there for years to come.  They both have stated they would like to live there for years to come but they aren't sure how much longer they can handle each other.  Are there any tips on how to build better tenant teams?  

Thanks,

Troy