1. nope. Spousal sponshorship is based on several factors to consider like genuiness of your relationship.If you work in US exceeding 6 months then get FBI Clearance as this will be part of your application.
2.Ask pastor for a letter and duly notarized it add this in your application as proof. After marriage license is applied, marry her/him again. Ask an immigration lawyer to avoid misrepresentation.
I was reading the book of Judah 6 and gideon was your name. I was reminded of gideon being weak in his clan but God chose him and it was mentioned there an angel appeared to gideon and said "the lord is with you mighty warrior". So don't be afraid in your processing of paper for the Lord is with you
Btw, ano klase ka software engineer? I'm into database naman, my significant half is a web programmer naman in vancouver.