How long the visa will be valid for? What i need to maintain it?

Resident visa in Dubai is valid for 3 years. In order to maintain the visa you need to visit UAE one time in every 6 months. In case you overstay and come to UAE later than required, your visa will automatically be cancelled at the airport when you arrive. You will need to make your visa again from the start. When the visa expires, you n eed to renew it: to do medical check again, apply for new Emirates ID and pay new visa charges.
Resident visa of Investor is valid for 3 years. Resident visa of employee is valid for ____ . In order to maintain the visa of Investor you need to come to UAE every 12 months, the visa of employee -  one time in every 6 months. In case you overstay and come to UAE later than required, your visa will automatically be cancelled at the airport when you arrive. You will need to make your visa again from the start. When the visa expires, you n eed to renew it: to do medical check again, apply for new Emirates ID and pay new visa charges.