RE is a great career and can offer a lot of rewards.

I cannot tell what size buildings you are evaluating ... there are references to existing duplexes, but nothing else.Secondly CAP is one of the simplest, yet most misused ratios in real estate {I won't get on my soap box this time}.  

They exist is most areas and are a good way to meet people in the business.

The biz LOC may not be attractive for you if your company's gross revenue is low or non existent. 

You can do this anywhere on earth where private property rights exist. 

You can have it rekeyed to match the existing one, or make sure your tenants get keys before you change it.2.

I say that because I'm a Realtor and also an investor, so I know we exist.

i have a real estate agent who is an investor who advised me to buy brand new homes ( i live in Louisiana) as there prices is cheaper and it appreciate faster and he has 7 of these. i'm not sure if that advise is valid or not and what i should do.all insight on how to find deals etc is highly appreciated and i have no clue about marketing as well.my main concern is that i want to start with 100K home 20K down payment maybe 150K home but i do not have a lot of cash to do a rehab i thought about HUD homes but i don't know if they are good deals or not, and i don't want to risk so much which my current finances as well multifamily homes almost do not exist in Louisiana as per my research and i can be greatly mistaken. so i'm thinking single family home or multi unit in a close by state with reasonable homes prices 100K-150K or cheaperall help and advises is appreciatedThank youMJ

The greater the risk the better the reward, I guess.

I survived the crash with no foreclosure or bankruptcy and am finally reaping the rewards of fixer uppers I invested in after 2009.