These niches have a history of strong cash flows with healthy underlying trends of folks seeking affordable housing, becoming more of a renter nation and our liking to keep stuff in good and bad times. 

I would eventually want to build a portfolio of properties that bring in a healthy amount of income via "passive". 

Last year, I purchased a solid duplex that's cash flowing a healthy $500 after mortgages and expenses- it's going great and now have the confidence to start to scale up. 

As an example if you can do it a spread of 5% to 6% is very healthy and can probably be achieved in today’s rate environment but it implies a return of only 10% to 11% which is not bad but may not compensate for the inherent risk. 

If you're offering real deals that had healthy profit in them, you would be sick of answering your phone.

I would like to start this journey to eventually earn my time back to keep a healthy work life balance.

Still, it's been a very healthy investment. 

Again, not always a bad thing, if your goal is a healthy cash on cash ROI.It sounds like you have a great plan in place, thanks for sharing!

You can go to regional and local banks and ask about unsecured lines of credit.Look into business lines of credit.Stagger the maturities of your private loans.Keep some HELOC capacity on your personal residence available.Make sure your investor understands how well their investment is performing, and encourage them to look to other cheaper avenues to raise the funds that they need.Encourage your investor to only invest a portion of their portfolio for illiquid asset like private loans, notes, and real estate equity, keeping a healthy percentage in marketable securities or other liquid assets.

I've found the deals and arranged everything, we borrow money (or sometimes just partner borrows), then I borrow about half of my 50% equity contribution form my partner at a healthy rate.