Other than using storage, that is a difficult one to solve. 

.- Estimated (conservative) potential income of $6k/month to start when fully occupied- possible additional income from laundry, storage and even by adding a small studios in basements- I can't refinance right now because of the numbers above; it would require me to bring a LOT of cash to closing which I do not have.I hope this overview helps more and that I am not forgetting anything. 

There're two type of asset from collateral asset perspective:- with asset that's depreciating : eg: car, washer dryer, computer,etc- with asset that's appreciating: SF,MF, storage, auto garage shop,etc. 

It’s a duplex with 46 storage units.

In addition to using "creative finance" with SFHs, I also invest in funds that have diverse asset classes IE. self storage, RV parks, mobile home parks, performing and non performing notes. 

But I would be hesitant to invest the time into a single house or MFH versus doing a self storage location or a subdivision.  

Most of those items are stored in the house in our owner's storage room.

I looked into it years ago when I owned a property in earthquake country and the house was on a hill with a "coal storage basement".

Second, decide on a niche, single family rentals, fix & flip, self storage, commercial.

Offer to pay to have movers transport the "valuables" to a storage unit and pay the first few months so the seller can have time to sort through it.