If you are looking for information on Texas laws, Texas has laws for different things. Below are some of those laws.
For divorce, you can seek no fault or fault grounds or if you have been separated by your spouse for atleast 3 years. To file for divorce in Texas one person must be living in the state for at least 6 months. As far as who gets the children and pays child support, the state is like other states where they try to do what is best for the child and have both parents in their lives and supporting them.
For employment discrimination, employees are not to be discriminated because of citizen status, national origin, race, religion, color, and a number of other things. The government agency that regulates employment discrimination is the EEOC.
For marriage, there are some legal requirements such as getting a marriage license. You need to get one but you can get married 3 days after it was given and it is good for 30 days after it was issued. After that time has run up you will need to get a new one. You cannot be already married and not closely related to who you are going to married. You also need to be the age of consent and understand what marriage entails.
As far as laws goes for neighbor disputes on properties, if someone damages your property such as a tree you can seek damages. It is usually what would cost to get another tree or what you paid for the tree. It is best to contact a lawyer to see what they recommend for damages.
So as you can see, these are only a few of the laws in Texas that you will find that may help you. There are other law practices that a lawyer may be able to help you with.