sponsor visitor visa

[puser]

what is the minimum validity period required on current h1 to sponsor visitor visa for parents?

[PraetorianXI]

There is no such thing, rule, etc.

[puser]

sponsor visitor visa

so, if i have a visa expiring in 3 months and I send papers for my parents to get stamping, what would be the likelihood of their getting 10yr visa?

[PraetorianXI]

Nobody can predict chances here... but as a general idea... someone that has too little time "left or since has arrived" in the USA, should not sponsor.