Also, I personally wouldnt cash out refi right now just because the interest rates are high but thats just my opinion and it really just depends on the numbers if you want to make a calculated decision. 

Is it wise to buy some units with high cash flow and low appreciation, and others with lower cash flow but high appreciation to diversify my portfolio?  

My main concern is GETTING financing for it since we have a high debt to income ratio. 

Is NOTHING sells for a refi appraisal price  I  mean nothing that appraisal is always high.. so when folks say hey I got a refi and it appraised at this and I now have this much equity that is also not true and wishful thinking..

Any way around paying the very high property tax, school tax etc. in SC?  

Be sure to take high-quality photos, and if possible, request utility records that confirm separate billing for four units.

But 1k a month in utilities definitely seems high.

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@Maegan Quaife, Of the 4 prongs of the Internal Rate of return 2 of them are very high for you - cash flow and amortization of the loan. 

.: Quote from @Tim Delaney: That seems odd to me assuming you aren’t in a highly negative cash flow situation.