Do you have any tips or personal experiences you can share to help someone new to the concept?

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.

This is an example of being cash poor and what can happen when you do not have equity in properties, or worse - have negative equity because you overpaid on seller financing. 

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.

It's a pretty interesting concept if you qualify for it. 

There could be reason behind this, but on surface, this is low.As noted above, severely negative leverageNo stated pref, so I am assuming the 80/20 split happens right awayProjected returns are okay.  

Do you think a just break even cash flow and slight negative cash flow is worth to hold the house?

I’m a new investor and have begun using the rental property calculator on bigger pockets for my market.I’ve only analyzed about ten properties so far, but I am getting about negative $1000 cash flow per month for most of the properties and negative cash on cash return.  

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.

Yikes, hope you can get your seller to give some concessions as that's a clear negative.