u/OkTop8847

I own two thirds of a rental property and my sibling owns one third, and wants to cash this in.
I am retirement age, on an annual income of £30,000, have £30,000 in savings, and the property in question would have a market value of about £320,000, I own my home and have no outstanding mortgage
I can see three options to follow:
1 Mortgage or loan for £80,000-£100,000 and buy the offered third share
2 Ask the tenant family if they could buy the third, they are good people and have lived there since 2020,
3 Sell the property
What is the possibility of option 1 and the potential implications of option 2; thanks