Tenancy in common agreements can be created at any time. An additional individual can join as an interest in a property after the other members have already entered into a TIC arrangement.

Tenancy by the entirety is a form of property ownership typically reserved for married couples. ... This type of legal agreement doesn't apply to other types of partnerships, such as friends, ...

Typically, if the property is for business use, for example agricultural or commercial, then the agent marketing the property will draw up Heads of Term, which form the basis of the agreement ...