Issues are bound to arise during the search for biological family. Many aren't as insurmountable as they first appear.
This is the part where most people get lost. This is also the part where biological relatives are found.
Your Dna results are in! Now What?
There are several companies selling DNA kits, but by far the best for a biological parent search is AncestryDNA.
At first, people may insist they have no information at all, but I seldom find this to be true: most people have more information than they think.