100K What to do with it?

[Myron McBride]

In a year's time I will have a duplex paid off and have access to 100K.  I have 5 mortgages and found a lender that will go up to 10 mortgages, only catch is they will require 25% down.  I could buy 3 duplexes.  However, I'd like to deal with a higher class of renter that might be more responsible i.e. pay on time and take care of the property.  What other options might I have?  Thanks for any input.