Would love feedback from anyone with personal investing and/or property management experience in these cities.

Be professional, but also authentic and approachable.

My goal is to wholesale some properties single and multifamily to build some capital while fixing my personal credit and building my business credit.

Personally, If I could pull out a HELOC, I would use it to fix and flip which will typically make sense as you shouldnt be keeping the money out for that long and you can recycle it or pay it back and build off the capital that you got from. the flip.

Quote from @Jason Baker: After leaving the real estate market in 2024 and bringing in the new year of 2025, what are the best updated strategies/approaches to be a successful wholesaler in the Miami Market?  

Just be mindful that you can't 1031 a personal residence but it might be eligible for capital gain exclusion from section 121.

Is it best to approach an architect or a land developer for what I am proposing?

The downside will have more to do with your business personality.

I want to reach out and get feedback on where I would be able to find off market self storage facilities and how to approach the owner?

Personally I prefer homes around that median price because that's where the most demand will be not only for owner occupants but renters as well.