If it's not uncomfortable for you, and if you have someone you know with the funds, you can use a friend or relative's money in a private money deal.

Then you can control how the funds are invested and put them to work in real estate, private mortgages, etc. 

Dane, if both you and your wife are part of the business then both of your can roll over each of your retirement accounts (with the exception being Roth IRA) into newly setup Solo 401k plan and use those funds for alternative investments.  

You could even put a LTV clause in such as balance due shall not exceed 80% of amount owed by the purchaser. 

I specialize in managing investors/hedge fund portfolio's that invest in Memphis, TN.  

A hedge fund?

I got a conventional loan at 80% LTV. 

Up until now I've been using private lending partners, friends, and family money but we are buying more homes than we have funds for so am looking for alternative funding sources.  

It would be a good book if you have limited funds. 

My first deal was single-family in which I used my mentors capital to fund the deal @Jerad Gardner.