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 understand the concept of it, but I have received plenty of decent off market deals from legitimate wholesalers.

But 3) Try multifamily specific brokers, crexi and loopnet, although 2-4 units maybe scarce. 4) A home equity line of credit is a good source of funds however it will generally make your overall monthly payments higher, so unless a deal is very solidly cashflowing, a HELOC may put you into negative cashflow. 7) Typically electric/gas are paid by the tenant - however this isn't true across the board. 

@James Kerson check out companies already doing (or those that have tried) something similar/same in concept to what you're describing.

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.

Add maintenance/cap ex, vacancy, PM, misc and this is likely negative more than $500/month even if self managed (much more than the negative $200 that you indicate you are ok with) 2) if you are behind on mortgage, how are you going to handle being negative $200/month, or more like negative $500/month?

You make more when it's uneven and you can live in the smaller unit.Focus on the asset and the area, as long as you can withstand net negative or breakeven cashflow, and you will gain in appreciation.

Profits do not justify their effort even with the ADU addition in this case typically not being hands off .Here is a list of things that make ADU additions a less than optimal RE investment but the value added and starting with tens of thousands negative is a big one that needs to be well understood. 1) The value added by the ADU addition is often significantly less than the cost of adding the ADU.

Many though, struggle to understand our market and the US culture of tenants.At the first negative issue, many panic and either want to sell or terminate us:(It can be done, but depends on your team and YOUR management of the manager.

@Connor ThomasIf it’s going to cash flow negative have you considered just selling it even if you don’t make anything and you just bought yourself some free education?