See the following for a list of lenders. https://www.biggerpockets.com/blogs/3441/51027-nonrecourse-loan-debt-for-self-directed-solo-401k-investment

I have 750+ credit score and no debts.

I seems like it will be difficult logistically, but is it legal?

@Kevin KellyMost Lenders will want to see at least a 1.25 Debt Coverage Ratio.

The Qualified Intermediary must acquire and hold ("park") legal title to one of your properties during the Reverse 1031 Exchange transaction. 

Househacking is a term coined from @Brandon Turner, and its probably the best idea ever for new investors willing to get ahead instead of falling deeper into a labor paid mortgage/debt with no real return.  

I would start off with fewer units (around 18) then large complexes later unless there are plenty of homes that have tri-plexus and four-plexus that are occupied will cover your debt payments and possibly allows you to live there if your situation would allow you to possibly live there.  

If you purchase a property and inherit the tenants, tenants who most likely paid security deposits at one point, how is the legal transfer of the security deposit money handled?

Throughout the years, we've saved a significant amount of money, by being debt free other than our mortgage.  

Did a great job and walks you through the legal process step by step and runs each scenario.