Cashflowing property - buyout partner or sell

[Account Closed]

Seeking thoughts on this from the brilliant minds here:

I'm 50:50 partner on a commercial property that we've owned for 7+ years as an LLC. We rent the property to our other company (other company is the tenant). We intend to sell the (tenant) company and retire in approximately 2-3 years.

The property cash flows $4,400/mo currently, which increases annually.

Property appraises at $1.8mm (third party appraisal) and remaining mortgage is roughly $800k @ 4.1% which matures 12/2026 

Options at 12/2026 would be:

1. Sell the property, realize gains of $500k+ to each partner
2. I could buyout the partner and continue to rent to the other business/tenant indefinitely and cashflow $5k+ per month until I sell in the future for $2mm+

Which would you choose?