Many contracts have a choice of law and jurisdiction clause, which will generally be upheld by the courts. If you had a problem with this, you...

Can we go to the Mexico (Cancun and Tijuana) with only green card?

This is an immigration question. Pass to that area.

The German consulates have a form that needs to be filled out with pertinent supporting documents to request a German passport/nationality. If you...

Your legal remedy lies in Australia. However, as one colleague suggested, just block her.

I loaned a friend $30k almost 2 years ago with the promise of repayment upon a property sale in Columbia?

Sue on the notes. Hire an international lawyer who will be able to tell you whether the proper jurisdiction is in the US or Colombia.

Can you help answer this question ?

Probably not, short of hiring a Turkish lawyer to retrieve the property.

Is there a way to stop someone from USA for stalking and harassing?

You could contact the police in the locale where this is occurring, although my experience is that the local cops don't pay much attention to this....

Valid where? If it is in the US, a charge or report can be expunged. If Malaysia, you'd have to talk to a Malaysian lawyer.

Can I call the police on a 19 year old dating a 14 year old?

Generally, in Europe a complainant has to be a party to the complaint, although certain exceptions are made for certain types of abuse, i.e.,...

I'm a Singaporean. Should I incorporate a remote-first company in USA or Singapore? Customers will primarily be in USA.

This is really too complex a question to answer in this forum. It depends a great deal on your tax situation, suppliers, etc. Indeed, you may...