In most cases a bicuspid aortic valve could impact your daughter's chance to obtain an Individual policy, however if she applies for an Individual plan & is not approved, she can opt for COBRA for a limited period of time. If by the time she exhausts COBRA she doesn't find a Group/Employer sponsored plan, she can exercise her HIPAA rights & get a guaranteed issue plan depending upon her state of residence at that time.
For instance in CA, in addition to the major risk pool (www.mrmib.ca.gov), Insurance Carriers offer their 2 most popular plans to individuals who opt to exercise their HIPAA rights after they exhaust COBRA.
Please note that these guaranteed issue plans cost more than their standard underwritten counterparts.
In order to find the right plan/carrier for your son & daughter, you can consult a local broker in your area or go online. There are a number of websites like www.eHealthInsurance.com (where I work) that can provide you with free quotes for all leading Carriers in your area online. If you decide to use eHealth & come up with any questions regarding plans, eligibility or process, you can also call the toll free number & talk to a licensed agent.
Wish you best of luck,
If you cannot get into health pools due to Pre-Existing conditons I would recommend looking into programs like Guaranteed Acceptance Healthcare Benefits. Some of them are TeamCorp and USA+ these are set rates and give you benefits that normally you wouldnt be able to get from a standard insurance company. You can check it out on this page .... look for Guaranteed Acceptance Healthcare Benefits on the page: