@Benjamin Blackburn
We waited approximately 14 months from the date we moved in to our home (which we own) until when we moved forward with the HELOC option, and we have no regrets. I think it may have been the best decision we actually ever made, as it provided us with a secondary income which has now become my primary income and has given me the freedom to break free of the 40+ hour work week being stuck in a cubicle.
We were approved for a HELOC of about $53k. We purchased two properties with that one HELOC. With those 2 properties, we used part of the rent generated to pay back our HELOC (which we'll be paying on for a while!) and the other half goes towards other personal expenses, and we've been adding on to the rental list since.
In this business/field, many times you need to get IN debit to get OUT of debt. Just my personal opinion on the investment world :) It can generate passive income if you do it the right way. My best advice for people looking to buy houses and rent them out - be very, very careful when choosing a tenant. Screen them, make sure you always have them provide proof of income, ALWAYS. Be strict with your leases. A bad tenant can ruin it for a lot of people so be careful who you let into YOUR investment.
Best of luck to you both!