I rented it for 1 year with minimal issues.In 2023, tenants moved out and I put in $5k in turnover costs.

This tenant is under the impression that since the paper he signed when he signed his renewal didn't clearly state the sale clause that it doesn't apply.   

However, this might involve significant upfront costs and logistical challenges.

All improvements would be added to the cost of your property and depreciated over 27.5 years.Any interest or taxes paid on the property for the full year are fully deductible. 

Typically 1k and up depending on property value and competition for taking it off market.

Private Money (almost) always costs more.

If one person has smoke in their unit and causes the alarm to go off, the alarm in all units go off, and the fire department is automatically notified and is required to show up (is what I'm told by the FD and PD).

You may face higher interest rates, shorter loan terms, or be required to put up more equity in the property.

If your property in Illinois is doing well, have you though about clustering around that to reduce your management costs.

You could also possibly partner with a relative who knows / trusts you to make up for any shortcomings you may have.After that, presuming you have good credit, you can go to a mortgage broker and they will evaluate your credit and financial "worthiness" against their requirements for their lenders to lend to you.