Optimal state/city to invest?

[Boris Sooner]

Thank you everyone who will respond. I'm trying to find the best combination of profit margin, landlord friendliest states/cities and areas with best chances of property appreciations. This is incredibly hard task especially for my price range (under $160k). This is true I should read Landlord-Tenant Act of every state and their cities. Then I should analyze ROI in every state/city. Then predict property appreciations across USA. And finally chose best combination of all the factors and pick a city and a house. I think somebody did this kind of job (since it's necessary for any investor) but I can't find comparison tables, recommendations etc. Any ideas?