disagreement between renters industrial property

[Tamas Vastag]

Hi,  

I would like to ask your opinion about this: 

i have an industrial property and there are 2 renters who are working in a very close branch, and i see some tension between them. I do not want to lose either. how would you solve an issue like this, before they turn on me with arguments that why have i let the other one be a renter if I knew there is a similar company like the other one?

thank you for any help, 

regards from hungary,

Tamas