(a) Any married person may transfer his separate property in the same manner and to the same extent as if he were unmarried and he may make contracts and incur obligations and liabilities, all of which may be enforced against him to the same extent and in the same manner as if he were unmarried. (b) Any person may, while married, sue and be sued in all matters having relation to his property, person or reputation, in the same manner as if he were single. (c) When a married person sues or is sued alone, proceedings shall be had and judgment rendered and enforced as if he were unmarried. His separate property and estate is liable for any judgment against him but he is entitled to the benefit of all exemptions for heads of families. (d) When any person against whom liabilities exist marries and has or acquires lands, judgment on the liability may be rendered against her, to be levied on the lands only. (e) A person is not liable for the debts and liabilities of his spouse contracted before marriage without an assumption thereof in writing.