There are lending outfits out there that will offer you the very same thing but at 9%, and 12% max.  15% is rather stiff but if they are your friend maybe you would rather offer this to a friend and work with them.

The bigger outfits charge 8-12% on income plus 1 month rent for new tenants plus a mark up for repairs.

If it's older, it could cost more to bring it to code, outfit for a use, etc. 

Sprout post-March 2020 is a completely different outfit.

You will learn more joining a construction outfit, property management company or a Realty company.Wholesaling takes as much or more experience than most entry level jobs, and you need a lot of money for marketing. 

To address the above you can get a Rain city capital, merchants mtg, veristone, or many other local and regional HML outfits to structure the loan all inclusively (as one note 1st position deed of trust) to pay for the purchase, the rehab, and the carry costs.

I have been quoted as high as 20-25k for drain tile by the "big" outfits, but in my Berwyn, IL flip last year I was able to get the drain tile done for $3,500 by a local plumber.

I’ll check my toxic masculinity on the person who called me woman....yeah that’s a thing now... and the guy who said to shut the utilities - man this crazy person knows the system and called the health department on me because the tenant who is responsible for the utilities didn’t pay the bill.

Normal CDs can also be redeemed early for a minor penalty (brokered CDs through decent outfits like Vanguard or Fidelity are different animals). 

Doesn’t seem like that vehicle can be easily outfitted with a ladder rack...