You can diversify your house hack inside itself if you combine rental strategies.

You can always leverage rentals within their ability to service the debt. 

Also, do you have enough equity that if you sold one you could pay down most of the debt on the other 3?

Ensure the rents and expenses support the debt service and provide solid cash flow after covering the assumable loan, seller carry payments, and operating costs.Occupancy & Rent Roll: What’s the current occupancy rate?

I am not a debt investor, a bond investor nor am I an investor in corporate debt, private equity debt, peer to peer lending, etc.  

I look for cashflow to service the debt, repairs, cap ex, taxes, and insurance while the equity grows, my taxes are decreased, and rents are increased to make more cashflow. 

Here's the breakdown of rental income and expense analysis:1.Annual Gross Income: $25,800 (Monthly rent of $2,150 x 12)2.Annual Expenses: $25,800 * 0.40 = $10,3203.Annual NOI: $25,800 - $10,320 = $15,4804.Annual Debt Service: $10,680 (Calculated previously using a mortgage calculator with a loan of $131,775, 7.25% interest, and a 30-year term)5.DSCR: $15,480 / $10,680 = 1.45 (approximately)

Then you can combine or exchange for a better or more consolidated/ better proforming area.  

COMBINED FROM BOTH DUPLEX SO ITS ALL ABOUT PERSPECTIVE YES THIS YEAR WAS HARD AND HEART BREAKING BUT ITS ALL ABOUT THE RESPONSE AFTER GETTING KNOCKED DOWN ! 

They also want a priority lien on the property.It sounds like you are looking for someone to fund your down payment, I would be looking for an equity partner over debt as nobody likes to lend money in insecure positions, especially when a borrower lacks skin in the game.How much are you planning to come in with yourself?