General Green Card

Under new deportation and denial policy 2018, I have following questions if I want to renew green card after 10 years. Can green card renewal I 90 be denied because of some common errors like forgot to submit copy of old green card, or any court document ( removal proceedings canceled without prejudice). Will I get deported if GC is denied due to minor administrative error?

I am currently on my CPT(masters student) & working as full time employee in Cincinnati, OH. I would be converting to OPT in Dec,2018. My employer is fine to file H1B for the next year. My current pay is b/w 60k-65k/annum. I heard that min wage should be 65K for H1B. And even if H1B is picked, there could be chances of rejection at the time of RFE. Will the wage between 60k-65K is ok or should it be more than 65K? I have gone through couple of other websites to explore on this. According to FLCDataCenter.com, I gave Ohio, Cincinnati(Hamilton county) and occupation as software developers, applications--it displayed 4 different wage levels. My current pay falls close to Wage Level 1 but above 60K. would it still cause any issue for H1B? Could you throw some light on this.

Can I keep the notarized copy of my green card instead of original green card? Because I think it’s risky to carry GC all the time and have fear of it getting lost. cost and wait time for replacing GC is very high.
When I will travel out of town or government buildings I can take my GC with me. But for other day to day routine travel can I keep my GC safe at home ? What is the maximum penalty I have to pay if random checked by immigration officer (very unlikely) I provide my driving license and notarized copy of GC? Is it very serious offense ? Have you seen people getting into immigration(USCIS) trouble for not carrying original GC?
Do we have to do police complaint if GC is lost? If yes then can you please explain the procedure, and forms to fill.

1. What documents do I need to travel outside the United States?<br>
2. What documents do I need to present to reenter the United States?<br>
3. Does travel outside the United States affect my permanent resident status?<br>
4. What if my trip abroad will last longer than 1 year?<br>
5. What if I lose my green card or reentry permit or it is stolen or destroyed while I am temporarily traveling outside of the United States?

I am UK citizen and had withdrawn a bank loan when I was in UK, which I did not pay back. I am on bad credit in UK.
Currently I am working in USA for more than 2 years and my current employer in USA is ready to sponsor Green Card for me. My current USA employer does not know about my bad credit in UK.

My Question is: During background and security check for green card process, will this loan effect my GC? Does the GC background and security check process includes financial unpaid loans/bad credits in other countries as well?

I am considering working contract jobs while employed by a self-owned company. I am on GC-Ead (pending AOS). Considering the mandatory filing of supplement J forms in case of job change. Is there potential for rejection? Considering that it will be a brand new company and no turnover at the time of filing supplement J.