Here are the details:Bought in 2015Owes - $45kNeeds additional $20-25k as a down payment on the new house for equity.Rate - 6.125% (Adjustable Rate Mortgage) Max is 8%PITI - roughly $700/monthHouse is in great condition so no rehabAsking $175,000, could sell on market for $220-230kRents - $1400-1600How would one structure this deal?

Additionally, these attract a lot of inexperienced buyers who started in the single family or four plex space who are trying to go bigger. 

Thank you for your insight Becca.

Consider expanding your markets you are looking in so you have exposure to more properties, and if you haven't already, engage with a RE agent who specializes in investment properties so you may have some insight to properties before they hit the market. 

At the minimum, the lead data gives you great insight into the MTR demand for your market.

FINANCIAL CONTRIBUTIONS:1.1 Party 1 Responsibilities:Party 1 shall contribute to the partnership for the down payment, closing costs, and construction costs for renovations and additions.1.2 Party 2 Responsibilities:Party 2 shall independently pay the mortgage until both properties are rented, oversee construction and renovation, manage both rentals, and handle bookkeeping during construction.2.

Additionally, my area has an abundance of 4-family properties in those in-between areas where a would-be house hacker can benefit from the four rental income streams (instead of just two if they bought a duplex) in order to help stay within the DTI requirements. 

I would recommend talking to realtors in the areas you are looking in to get more insight and what to expect.

Debt if used responsibly is a valuable tool but to say debt will always multiply returns is the wrong message to spread in these forums where there's a ton of readers who are inexperienced investors and will fall for the trap of following your flawed approach to originating debt.If you need additional help understanding how debt works in real estate, please send me a DM and I would be happy to help you out.

If you don't get any additional feedback, you should be able to call the City of Phoenix Planning Dept and assess the overall process, timeline, fees, and feasibility fairly easily.