Of course to make a valid lease there must be competent parties. A lease made by a minor is not void, but he may avoid or cancel it by some positive act. Can he do this before attaining his majority? On this the authorities differ. Again appears the risk of making contracts with minors, though the situation many times seems clearly to justify such action. A guardian may lease his minor's land for the period of his minority; if leased beyond, the ward may have the lease canceled for the excess. A lease terminates on the death of the ward, whatever may be the length of the term. A parent cannot lease the land of his minor child like a guardian.
By common law a lease made by a married woman was avoided after her husband's death. The modern statutes excluding her husband's power of control over her property and authorizing her to take and hold property as if she were an unmarried woman, have abolished both his power to invalidate the lease and also her power to repudiate it after his death.
A private corporation may make a lease of its property provided that in doing so it acts within its charter. A municipal corporation, while it may lease property belonging thereto of a private nature, cannot lease property which has been devoted to public use. A corporation whether public or private may take a lease of property so far as this may be a proper means of carrying out the purposes for which the corporation was created.
Executors and administrators may dispose of a lease belonging to the deceased, or make new leases for terms within the period covered by it. Trustees have a still larger authority to lease the lands entrusted to them, unless restricted by the terms of their trusteeship, or by statute. Though a member of a partnership, as we have seen, is an agent, he cannot make valid lease of partnership land.
What may be leased? Besides land, the right to a wharf, to flow with water the land of another, to go over another's land. An ordinary boarder, who has a room and boards in the house of another and who retains the possession and care of his room, is not a tenant. On the other hand the letting of an entire floor for lodgings may create a tenancy, and so may even a single room. A lease for an unlawful purpose is void, for example, for the sale of spirituous liquors contrary to law.
If the premises are occupied by the lessee and his rent is paid as specified in the lease, this is regarded as a ratification by him of an invalid or void lease. To this rule are some exceptions.
A rule of construction may here be added; if a blank form is used in making a lease and the printed and written parts or agreements are inconsistent, the matters written are regarded as expressing the intention of the parties.
Much might be said concerning the use of the premises. If a farm is rented and the lease is silent on the matter, the law presumes that the tenant will use it in a proper and husbandlike manner, like other exemplary farmers in that vicinity. He must cultivate the soil properly, preserve the timber, consume the hay as fodder to the cattle, if such be the custom, and keep the buildings and fences in repair. Manure in the ordinary course of farming belongs to the farm. To manure made in livery stables a different rule applies and the tenant can remove it. If the lease be of a mill it usually provides how it shall be run, if it be a house in the city and nothing is said about its use the law implies that there shall be no waste or destruction beyond the ordinary wear and tear. To use the doors for firewood is not uncommon with tenants, unless they are not burnable, though surely it is not a proper use of a leased house.
A farm tenant has the right to take and use material found on the land suitable and needful to repair the buildings, fences, also dead and fallen timber for fuel. He cannot use shrubbery and ornamental trees for this purpose, nor cut standing timber for this purpose. He is entitled also to the way going crop, but must remove it during his lease. He cannot go on the land afterward and remove crops, unless he was prevented by some good reason from removing them while he was in possession.
Can a lessee assign or sublet his lease? Of course this may be forbidden, and often is by the lessor, without his consent. If the lease is silent this can be done. If the lessee die, his executor or administrator can assign the remainder of his term. A lease may also be assigned if the lessee become insolvent, also by a new partnership created by the addition or retirement of a member. A transfer by the lessee of the whole or a part of his interest for a part of the time is a sublease and not an assignment. And whenever a sublease is made, the rights of the original lessor are not changed, nor does he recognize in any way the sub-tenant unless by agreement, nor has he any right of action against him. Of course there is nothing to prevent the parties from making any arrangement that may be agreeable to them.