Buying a property in UK on tier 2 visa?

Hello, I am writing you in order to get an answer for my question with regards to buying a property in UK ( Scotland ). My actual status here in UK is a resident with tier 2 Visa ( Sponsored by my Company ). after almost 2 years spent here in UK, i would like to buy a property instead of keeping paying a rental charge which is huge and taking a mortgage from the bank which is already accepted. I am just wondering in case i have to lose my job, what will be my status then after..... Do i need to sell the property ?? as i believe i have 1 month to leave the country ? What will happen for all the pension and taxes i have been paying since i came to UK ? I would appreciate some answers if its possible. Thanks in advance and hope to hear from you soon. Rachid