Residence Permit - Single entry visa from Qatar

I received the offer letter intially then i signed and sent with all supporting documents, after a month the X
company provided me the Residence Permit - 2 years Single entry visa for Qatar.
Presently i am residing in DUBAI from the last 5 years/ Actually due to my family situations i cannot move and
accept this offer. if i inform the X company that i could not able to join as per the situation.
1. They will take any legal action against me?
2. I am in dubai, Its GCC, whether it will affect me here.
3. how can i handle this situation now.
anybody knows please comment. Thanks.
Qr.300/-. Pls make sure Boxbe.....is not the MD of ur company X in Qata!:-)
how much have to pay for the RP. they will take any action?
be honest and inform them the family situation....but they paid for ur rp...u have to pay them back