Also be aware that most immigrants (adult immigrants at least) will have a much lower score than a comparable citizen due to a much shorter than average credit history. 

Families are the best tenants in your area-- most stable, mature, settled and usually 2 or 3 working adults with income.KEY: Make money the day you buy.Use an investor savvy realtor that you personally like and can build a relationship with.

I've informed her that each adult occupant has to complete an application (I'm using erentpayment.com) and the SmartMove credit/background check.

That's something I really need to work on as my current guy that i have used all of my adult life is a retired guy from a big 4 who is more or less an H&R block.  

To check on the tenant and the house weekly to make sure the boyfriend didn't just move in or the adult kids just move in, and that bad things are not happening in your house or that your tenant didn't just move out in the night in the middle of winter and turn off the gas, but not the water.For my $15,000 which my IRA is looking to invest, I am going to get to know the major players in my market or any market.  

I'll start off by saying I'm a 19 year old female who often gets mistaken for a 14 year old female, so I'm not sure if my age/appearance would be a disadvantage.

Are you old enough for adult community which is so much more reasonable?

If a realty agent has a problem submitting a low offer, he/she is worrying too much about the other party who are consenting adults under the law and can make their own decisions and research to decline, accept, or counter the offer.

There are parents/sisters/friend/grand children, total 6 adults 4 children. 

If you ever want to get ahead in life your will have to act like a grown up adult and pay taxes like everyone else.