If you took a $100,000 loan at a 8% interest rate, you would owe a total of $8,000 in interest.

I too echo the sentiment about the high turnover rate.

@Chris Strandburg Our properties are renting out for 50% above long term rates on average.

In the current market you may find the third R as the most difficult with current home values and interest rates, but it is not impossible!  

Rates are high, prices are high. 

Net income = $39,240Monthly operating expenses are as follows: Trash - $33, Landscaping/yard - $66, Electric - tenants pay, Water - $95, Maintenance $87Monthly taxes about 3KSo, gross expenses are at $41,064If I'm doing the calculations correctly, my net operating income is -$21,888 and cap rate is -3.4%.Obviously the current numbers look terrible for this investment, but I feel like the rent should be raised significantly based on comps (above 2K each unit). 

The rates are competitive, but they require a larger down payment, usually around 50%, but your client could get in a great 3 fam in Bushwick, Bed Stuy, etc. 

Whether or not the note holder chooses to do anything depends on many factors, not the least of which is the interest rate being paid on the note I question vs the current market mortgage rate.  

The initial returns are lower on paper in better locations (lower cap rate, less initial cashflow according to the magic spreadsheet), but the overall returns in reality are much better including all the different ways people make money in real estate (gained equity through natural and forced appreciation, principle pay-down, increasing rents= higher cash flow when looking at the big picture if you buy and hold, depreciation tax benefits, plus way less of the big profit killers like turnover, non-paying tenants, property damage and theft, dealing with bad contractors because good ones don’t choose to work in bad areas either, etc.). 

Usually tenants don't even bother to show up to court for my cases... and if they do, they would almost certainly not get into finer details like this unless they had an attorney.There are attorneys that specialize in evictions and will likely give you the best rates.