Property Agreement

A and B are friends. Plans to buy a waste property and decide to remodel it and to start a business in it A role is to remodel it with his money. B role is to buy the property. Both transactions made B bought the property and A remodels the building and started a business with a rent agreement from B A invested his money and B repay some amount of money to A and made Rent agreement like 1. Not to give sublease anyone 2. If rent pay stands for 3 months without notice vacant the property? Due to covid 19 lockdown, A didn't pay rent for B from march to October Note:- A don't have any evidence that he invested in B property (no promisory note) but a WhatsApp group is created and made payments under B supervision and A has bank statement evidence which he made payments from his account The Query is 1. if B approaches the court to leave our premisses due to incompleted rent pay from march to October what the court decides. 2. what about the remaining amount of A which is invested in the business