Most simply don't have it and or also have very limited sales and closings skills ..

You'll need to work with an agent who specializes or has some skill in this and who understands investing.

I also have marketing skill and tech skills.

Build the broadest ranges of skills, knowledge, attitude and abilities and become business lethal.  

Challenge and Stretch: Great leaders challenge their teams with tasks that stretch their capabilities, allowing for growth and the development of new skills.6.

I’ve learned to start the permitting process early and keep a close eye on inspection timelines to avoid bottlenecks.It can be difficult to find contractors who are not only skilled but also reliable and available when you need them.

You don't know if you have any skills?

Further, you’ve never even mentioned using third party foreign asset protection trusts domiciled in Nevis in your post which shows you’re withholding information vital to success in the note business.  

@Jamie Hora You are mastering such a valuable skill!!

The most important thing right now is developing good bookkeeping skills—which your CPA won’t be doing for you.