I do most of the putting out fires, hiring handyman, bribing people to not leave a bad review because they saw dust on a ceiling fan blade (lol). 

Did you work with any real estate professionals (agents, lenders, etc.) that you'd recommend to others?

You will definitely need to underprice the unit until you get some reviews. 

If they stop paying, I foreclose, but still keep making my payment to the underlying lender.

Start by reviewing the assessment report for errors, such as incorrect square footage or outdated property features.

If you can rent it out, get it rented out, get a year lease, then start approaching commercial lenders for either a DSCR loan or a 2nd mortgage, with cash out. 

Most lenders will vary how aggressive they will get based on the experience of the operator (you), but I don't know any that will lender to someone who's never done a spec build like you're contemplating.

Most lenders I work with would lend you 70%-75% of the value of the property, but only so much that your NOI/profit is 20%-25% of the monthly loan payment.

How many mortgage lenders have you spoken with to get qualified and discuss allowable down payment options?

I’ve watched a lot of videos on how to screen and how to set up work with contractors, so I’m hopeful to build those relationships more in this area in the future.Did you work with any real estate professionals (agents, lenders, etc.) that you'd recommend to others?