I now have to submit a proposal to the asset manager in my region. 

It won't necessarily be reliable nor a formal proposal, but you may get what you pay for. 

In fact, there are massive amounts of energy storage projects proposed to contend with oversupply in the West.On everything else we agree. 

A recap of my initial inquiry: I proposed a 40/60 equity split and I pay my investor a 8% preferred return. 

The loan proposal is a fixed rate 3.5% for 15 years with a LTV of 80%.

@Jerryll NoordenSo you propose to send mailers out new people rather than sitting on the same people for a couple of rounds.

@Spencer Gibson There are many articles coming out related to various sides of this topic and I assume BP will not let me share links but here is some text from one of many:  A New Senate Bill Proposes $100 Billion For Emergency Rent ReliefAs the U.S.

What you are proposing is the smartest way to find better returns when you live in a hotter market.

From the side of someone providing capital, I'd be scared that you don't have the experience or contacts to execute a rehab efficiently or operate a rental property (maybe you do, just an assumption), so I'd want more of a partnership scenario.Based on the information provided, I would propose something along the lines of these two options:Option 1 - You Keep Long Term EquityPurchase $300k via installment sale of $14,000 per payment, paid yearly for 40 yearsRehab $100k (or whatever it ends up costing)Title to be held in capital partner's nameAll net rent proceeds to capital partner until they get an 18% IRR on invested capitalCapital parter goes away  Option 2 - True PartnershipPurchase $300k via installment sale of $14,000 per payment, paid yearly for 40 years.Rehab $100k (or whatever it ends up costing)Form a GP or an LLC and hold title in that entity's nameDo the renovation. 

I would propose a deal where I am NOT getting any fee from them as they may look at this as a slight.