A person came by and was interested in renting it out and was willing to put some work in it.

I personally have never seen that, but I’m only one person.

I have 3 properties in my personal name (to get best rates).

Make sure you have personally spoken with the tenant, maybe since you are new owner they don't know where or who to pay or paid the previous owner. 

Any 'investment' can act as a 'retirement'.Roth is great because it is tax freeI personally like real estate also becuase your cash flow is normally shielded by depreciation.I like real estate further because there is less complixities / restrictions when it comes to IRA such as the 5 year rule, year you have to take distributions, RMD, Unrelated Business Income Tax(UBIT).Your goal is to have the best return and the most money at the time of retirement, what is the best way to get there?

Your approach and drive is impressive, and it's clear you have a solid plan in place for what you want to do.I'd love to connect and discuss potential collaboration opportunities.

Don’t waste your time with the large banks, you’ll never get to the right person unless you operate a hedge fund and are going to buy hundreds at a time.I found small local banks work the best.

I have acquired my experience from working on my personal live-in-flips and building ADUs, as an owner builder and self-performing most of the work.

We use CompanyCam for this, that might be something that will help you catch things that are missing as well as making sure things are done correctly, whether you are there personally or reviewing remotely.

Apology:By the way, I spoke personally with the seller about it at DME.