Rental property loan period

[Thripura Vemireddy]

Hi

I see lot of people talking about the rent being  either 1% of the sale price, 50% of the rent going to PI.

Iis it more appropriate for a 30 year loan?

Is going to 30 year loan best for rental propeties?

Thank you in advance for the people going to reply.

Thanks

Thripura