I would also highly recommend getting a business credit card to purchase furnishings and later supplies for the property.

Furthermore, the heat poses elevated wildfire risk, which could partly be why in two filings with the California State’s Department of Insurance on Thursday, State Farm disclosed it is seeking a 30% rate increase for homeowners, a 36% increase for condo owners and a 52% increase for renters.No matter what side of the political divide, in my near forty years on this planet I have personally noticed local and global warming.

Buy supplies in bulk and keep them in a locked closet, garage, ect.

When I hear "affordable" I always think, undesirable since price is always based on supply and demand.

My friend is going to supply the money for the down payment.

I do not understand why one looking for a buy would ever go to a "wholesaler" vs those who actually control the vast majority of supply. 

There are suppliers in China who can supply pre-cut SIPs and they say they can source other exterior and interior finishes (except electricals and plumbing) from other suppliers and ship it.

I was concerned because the tenant has roofing supplies all over the back yard in addition to a trailer and roofing machine in the street. 

You can ask the Sub's, or whoever you are going to do the work, which materials they need and price them out at other supply houses.

Plus the resources Africa supplies.