Vietnam Real Estate Lawyer, foreign investment to buy property -- 2

I am a Vietnamese US citizen and inquiring about purchasing property in Vietnam HCM or Hanoi as rental property. Additionally, I would also need a Property Management firm to maintain the property. please provide me with what I need are the current requirements to be able to purchase property. Please provide me with your legal credentials. Your office number and address The number of years and reviews of your experience. I will send a proxy to speak to you directly once we are in agreement to what extent is your role. thank you. Please speak English and Vietnamese.