This is where Re-Financing comes into the picture.
If you have a portfolio that is worth U$1mill. and it is growing at say 15% per annum (A conservative estimate here in sunny South Africa at the moment) then you effectively have  U$120 000 to use at the end of the year (80%x15%xU$1mill)! This excludes any positive cahflow from the rental income stream which you may have.
As long as you are educated in how to handle this cash, you are generating an income, WITHOUT having to sell the properties to achieve an income stream.
AND THE BEST PART!!!!!! At the end of the following year it ALL happens again!

Investment Property Portfolio