You don't even check for these types of Tenants!!!"

This would help you get going.You might be able to make these a  little nicer and force appreciation and a little higher rent.Either way rents will go up over time and the mortgage with remain constant.Maybe even make one unit a STR which could see higher income.I'd be ok with break even or a little bit negative on a Quad given you have 4 properties in one.If you're only breaking even you still have depreciation and other tax write off to help you out.I usually make people 3 offers.

Many people invest in real estate using an SDIRA or even better a Checkbook IRA.

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.

Anytime something seems even just a little off, REPORT it, just to have it on record. 

But SFH are already seeing renewals at 2%-4% and release rates up at least 5% YoY...that number is even higher on some luxury ($3k+/m rent) homes as those are harder to find.The rest is entirely speculative.

I even sold my townhouse rental  just like you sold your 4-plex to keep the process going.

The people with single rooms even paid a bit more.

There are some very aggressive investors that refi into interest only products to free up even more cash in the short term - this can be much more risky though, so not recommended if you are not very experienced and have large reserves.

Even if it is only a 2 bedroom, great looking place.