By the time you factor in taxes, insurance, vacancy, reparis there is very little left, and you are hurting your debt ratio and ability to do deals that make money unless you are a doctor, executive or make a boat load of money monthly and do not have to worry about DTI (Debt to Income Ration) which lenders use to determine credit worthiness.  

It had to be rationed out through a custodian to make sure all bills, expenses, food etc was covered)Such was the case of, lets call her “Marta”.Mid forties, “Marta” was an interesting individual, well known in this area for her unusual antics.

Of course, I also like to preface it with prior communications if possible (because it really can make the next 6 mos awkward) but they seem to not regard the landlord-tenant relationship with respect by their repeat behavior, and  it sounds like you have exhausted this line of rational, patient and understanding communication. 

I'm biased but I would decide if I am looking for cash flow or appreciation- there is usually a trade off there2. it depends, beware that multis with low price to rent rations tend to be more common in rougher neighborhoods3. depends on how much work you want to do.

Rational range is ( 8 < GRM < 10). 

However this assessment is only 1/3 of the tax picture AS I SEE IT, and since several folks much more intelligent than I disagree I am hoping to learn what I am missing.From my understanding taxes are calculated as follows:Fair Market Value x Assessment ratio = Assessed valueAssessed value  x millage rate = tax burdenWe have covered the assessment ration above (4% for O/O; 6% for investment)But I think the other 2 factors offset this.

While some properties in the portfolio may be fully leveraged (80% LTV), the entire portfolio will most probably be leveraged at a lower LTV ration (i.e. 65%).

Interesting.Based on the OP, I don't see this being a level-headed, rational discussion.

It is only rational to think that my numbers will be close to that rather than to a broker's fantasy of $3K.Your numbers are specific to your market and property class and I bet you self-manage that 6-unit building.

It's just math.HOWEVER, if you (like most people, myself included) don't always act purely rational and mathematical, the psychological benefits that others have described (paying lower balance first) can be worthwhile.AND, if you plan to invest in more things before you retire all your debt, you may want the flexibility that having access to more free cash provides, even if it slows your debt retirement down.