Hello USA,
Hope you are doing well!!
My self Priyanka, and I am having more than 7 years of experience in web development. I have gone through your requirement and I am very much confident and exited to working on.
We can use Google Map Polygon API to draw boundary on map, and then we can provide search feature to search boundary.
I am still not exact getting about 2nd point about comparing boundary using degree/min/sec. So can you please elaborate more?
We can create small admin in Laravel PHP, from where you can add new survey boundary.
Trust me I will not let you down and will give my best.
Looking forward to hear from you.
Regards,
Priyanka.