Can I purchase a washer and dryer with my Lowe’s credit card on line and have it delivered to my sons home in savannah ga

No! I am a retired supervisor for the Lowe's in Pooler, GA. The only way you can this is to call the Lowe's closest to your son's house. Each Lowe's has different prices. Some may not carry the same product as another store. Plus, that particular sale is for the store that took payment. They would not be able to credit the store the washer came from and that store would go in the hole. Again, call the Lowe's store closest to your son's house and they can handle the transaction.

Yes

Yes you can

As far as I know you can. You would just use his shipping address with his name to have it sent there.

I'm pretty sure you can. Don't know brand names.