Can I send legal notice from one state and file petition from another?

My wife has gone to her native and planning to settle there along with our son and does not allow me to meet or talk to my son. Can I hire a lawyer, from the jurisdiction where we got married, to send the legal notice, for child custody and if the notice is refused or not responded within stipulated time frame as drafted by lawyer or if both parties could not arrive at an amicable mutual solution, then can I file the petition from the jurisdiction where child's school is present, which is in a different state, where we last lived? She is planning to find a new school in her native. Can I ask school not to give TC without prior consent of both the parents? Is there a legal way to stop TC? If I do not get custody then what is legal option for join parenting. I am ready to bear all expenses to support them. Not looking for restitution of conjugal rights and divorce isn't priority, only looking for child custody or joint parenting. I understand visiting rights will granted in any case.