When you apply for life insurance the application has a question asking you how many life insurance policies you already own, and how much total life insurance you have "In Force".
The insurance company wants to make sure you aren't over-insured, which may give you incentive to end your life so your family can get the life insurance money. Most life insurance policies have a 1 or 2 years suicide exclusion if suicide occurs within the first 1 or 2 years you are insured, they will deny the claim.
In addition, the insurance company may limit the amount of life insurance you can buy based on your annual income. For instance, maybe they limit your maximum amount of life insurance you can purchase to 20 times your income. So, if you earn $100,000 a year, perhaps the insurance company allows you to buy up to $2,000,000 of life insurance.
However, you can compare free, instant life insurance quotes online for up to $10,000,000 of life insurance protection to find out how much it may cost you.
In addition, the amount of life insurance available to you will depend on your age and health. The younger and healthier you are, the more life insurance that may be available to you.
But, you should be able to purchase the amount of life insurance you need, if you can afford the premiums charged for the policy. Remember, term life insurance which offers up to 30 years of protection costs a lot less than permanent life insurance.