There are only three instances where it makes sense to buy solar panels for your house.1 - You are living off grid. 2 - You live in a state that has sky high electric costs AND great tax insensitive.3 - You have lots of money, don't care if you are paying more, and want to feel like you are saving the planet (even though you really are not). 

Anyone got any ideas?

And then I try to save up cash to buy rentals.

@David Friedman I love this.You have huge parking options.You have two arts and cultural destinations there.I think your idea of attracting a restaurant is a great idea to help with the place making of that corner. 

The other thing to remember is that these corporate entities are not saving you taxes on a rental property.

Year 1, cash on cash return at 9.46% Over the next 10 years, here are the projected overall returns with 5% year over year rent growth, 3% year over year appreciation of the property, and calculations for tax savings + debt pay down: I'm a buy and hold investor.

Do you have a general idea of the interest rate on the HELOC either for your primary house of investment properties that you could get?

This property cash flows before the ADU.Now im about to graduate college I make more than enough to live on due to having another profitable business with a partner though I have some major personal life changes coming  that will take a lot of my income but I will still be able to save an amount I am happy withIn this position where should I go?

If you're already at your max and will deplete your savings just buying the house, I wouldn't get something where you need to do major renos.   

You really have no idea what it will end up being.