How many months gap is permisible for H-1 and also in GC process if person is on H-1 ?

I mean to say supposse one H-1 holder lost his job and if he got another job after 02 months ( Gap of 02 months ) then his H-1 and GC process will be effected ? His last co. is supporting by keeping her I-140 as such ( no revock )

(Condition: Person has H-1 and his I-140 was also aproved in last co. but due to some reason she left job and would like to join another co. on 3rd month, say after 02 months and would like to file H-1 in this new company )

My wife is on H1B and now she is 7th month pregnant. If she takes leave on non-payment, will she be in H1B status or out of status?

I am Mr. Jones, the employer. The employee, Mr. Smith, is no longer employed with us because of company's budget issue. However, we may hire him in the near future if circumstance changes.
My question:
Q1. Do we need to withdraw PERM LC for him that was submitted 2009?

Q2. Question from the employee, Mr. Smith:
If Mr. Smith filed an immigration benefit (e.g. visa, petition, change of status), does he need to answer YES / NO to the following question: "Has an immigrant petition ever been filed for you?" Basically: does submitting PERM/LC mean filing an immigrant petition? This question is often asked in application.