In order to not have to put any of our own money into this deal, we intend to leverage the equity of my Grandma's home as a down payment for the loan.2) Should we leverage a construction loan or some other form of financing?

A tenant destroyed a garbage disposal with a shot glass- the next thing in my lease was tenant payment for repairs not coming out of security deposit and specific terms for hourly labor charges. 

We made an offer based on what our down payment could buy.

They informed me that they could not wait that long and requested payment by Wise.

I also have solar panels on the property with a monthly loan payment of approximately $150 a month.

Subdivided off the adjoining 3 acres to become free and clear and now am developing into 9 more units using the land as down payment for construction.

We're out of state, so reliability and communication are very important.

I'd then work my a$$ off to pile up another down payment, and buy another as soon as possible.  

Out of state can be difficult if you don’t have a reliable team in place.

We've tested a few others but find them to be the most reliable for Vacant Land.If you're doing enough volume you can explore contracting with them directly.