please suggest to avoid gain tax and avoid being labeled as dealer by IRS?

Taxes are high in Carbondale.

Quote from @Laura Kreinbring: What do you think about what the platform professionals told me:So you use experts from one free forum to validate the expert from another free forum?

Additionally, depending on your unique requirements and tastes, speaking with a local real estate agent might offer insightful advice.If you have more specific criteria or questions about any of these areas, feel free to share, and I can provide more targeted information. 

All cashflow after that will go directly to your bank account.When you make contributions from SDIRA on the other hand, you don't get to enjoy the cashflow and all profits right away since all proceeds go directly back into the IRA account and you end up paying taxes when you are ready to cash out.My question is what method do most investors prefer to go with when investing in syndications ? 

You have to amend your 2023 tax return. 

Do we have to show proof to the buyer that he has settled the capital gains tax and/or provide the IRS certificate? 

I also feel like there are potential tax benefits to a loan instead of contribution/distribution.

Local government is landlord friendly and taxes and cost of living are lower.

Ask your lender if they have a "free Refinance" program too after you add the value to the property.