Planning on Purchasing Duplex in Las Vegas, Any Tips?

[Yan Huang]

I am planning on purchasing 2 duplexes as an investment properties in Las Vegas (most likely North Las Vegas). I am looking at homes that are in the ballpark of $120,000 to $150,000 with gross rents averaging $1000 (roughly $500 per unit) monthly. 

I've purchased a single family property before but that was in Los Angeles and it was rented to family so this will be my first 2 investment properties. Do you guys have any tips of what I should look for or look out for? And also is my budget and how much rent is within reason as far as an investment goes?

Thanks in advance.