Investing your finances in short term things is one of the concepts you have to think through. It's another thing to set it for bigger ventures like properties. When putting money in purchasing properties for lease in the future, you should acquire a tenancy agreement template to model your contract from. The tenancy agreement is a signed contract between the landlord and the tenant. Accelerated possession procedures require a rightly drawn agreement. For claims on housing benefit, the tenancy agreement is essential to the tenant as it will be proof of their tenancy so the contract is beneficial not only to the landlord but for both parties.
As you begin to consider putting together a joint venture, you need to sit down together and consider all the different eventualities that can occur. You need to establish your goals and mission statement and put them down in writing. You will also need to list the responsibilities of each of the members of the venture as well so that there can be no mistake in who is responsible for every facet of the day to day operations, at the same time should anything go wrong it can help decide on whose shoulders any blame may fall.