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@John Mason do you recommend a HELOC in this situation?   

  $540,000...this price includes no commissions.

Make sure to design your units with this demographic in mind.

This is my first time considering Section 8 so I’m doing my due diligence in making a decision.

Quote from @Marc Shin: First, you should let us know what state/city you live in because the rules sometimes change, and we can't give you solid advice without knowing where this investment is.Generally, you can give them a 30-day notice.

I don't think we will ever have enough "doors" to replace an income in this time frame, but we would like to get to 5 doors in the next 5 years which we would sell in 10-15 years to help supplement our retirement income.  

I've been getting this question a lot lately.

This would also make a big difference when calculating your net gain. 

This savings can then be reinvested into more properties, allowing your portfolio to grow faster.