You aren't offering 8% interest, you are offering 16% interest

So just a quick check before you get excited about writing an offer on the property to ensure income limits aren't going to kill the deal... keep in mind that rental income counts towards that limit, so really you're limited to census tracts with no income limit (again, 90% of many major metropolitan cities).Here's my little "Why 6 year old biggerpockets.com podcasts and blog articles telling you to start with FHA are, as of 2018, wrong."

The numbers aren't really adding up for me.

Oh pristine never called me back so I dont know about them and premier aren't take any new properties right now.

Since the duplex is new you think that there aren't going to be problems managing your duplex.No matter how new the property is, you're going to have problems with your tenants that require your time.

I will say you're going to have get pretty far from Austin to find many parks that aren't owned by sophisticated investors.

Others just want to create stable monthly income or want to build a portfolio in a more accessible market than the one they live in, but aren't interested in getting their hands dirty in the day-to-day.

Work your way up in quantity that will ultimately allow other people budgeted and paid for Property Management Company running the daily operations and you are responsible to manage the management company without having to come out of your own pocket.I have heard that it takes about 30 units before you can afford a management company as a regular expense that property will pay for. 

Don't waste your time setting up showings with people you know aren't qualified.

@Maha Ahmed If you are buying the property for cash flow then comps aren't quite as important.