Jobs.

STR it will cost you big.this isn't a difficult job depending on the fridge location.

Also, focus on 2 years of job/income stability.Class D Properties:Cashflow vs Appreciation: Typically, all cashflow with little, maybe even negative, relative rent & value appreciationVacancy Est: 20%+ should be used to cover nonpayment, evictions & damages.Tenant Pool: majority will have FICO scores under 560 (almost 30% probability of default), little to no good tradelines, lots of collections & chargeoffs, recent evictions.

Also, focus on 2 years of job/income stability.Class D Properties:Cashflow vs Appreciation: Typically, all cashflow with little, maybe even negative, relative rent & value appreciationVacancy Est: 20%+ should be used to cover nonpayment, evictions & damages.Tenant Pool: majority will have FICO scores under 560 (almost 30% probability of default), little to no good tradelines, lots of collections & chargeoffs, recent evictions.

I drop them and use a competent local RE agent, who did a great job.   

The problem many of us run into is being in New England, many of the markets are high cost, high appreciation markets that we either can't get pre qualified for, or even after moving out will struggle to cash flow.Another big constraint is that many of us have W-2 jobs in engineering that require some days in the office, and these types of higher paying jobs are primarily in major cities (most of us are in the Boston area).Lastly, a lot of us have significant others that may be less interested in living somewhere "random" because it makes sense as an investment.

It's a part time job now.

For starter, I am married to my 9-5 job and looking for a way out.

I agree with @Jonathan Greene that the question is vague, so my advice will have to be as well.The short answer: MTRs are real estate, so just like all real estate, any place that can long-term-rent cash flow with increasing jobs/population can be a suitable site to purchase. 

Is it wrong they tell the investors if asked to say they are "partners", or "contractors" just bidding the job?