Precaution and Rules to Paralleling Power MOSFETs
The mosfet paralleling can be done, but it needs some prudence. At least you have to use a gate resistance for each mosfet. The driver is can be the same but each mosfet must have its own gate resistance. 

The problem with mosfet paralleling is the gate oscillation which could cause undesired turn-on. The oscillation are due to the parasitic inductance in the layout and the use of a resistor for each mosfet damp the oscillation.

IRF AN-941 PARALLELING POWER MOSFETs