COS to any other status will require you to present H-1B documents to show you and your spouse were maintaining status when the COS was filed.

In my opinion, USCIS denied it based on the alleged fraudulent marriage and that has be a long standing practice. Any of the past marriages which...

If you know you want a longer trip than that is permissible on ESTA, apply for a visa and seek that time in the U.S.

It will be difficult to get specific guidance on online forum without talking to you about circumstances around your marriage, courtship, where you...

It is not recommended to terminate the job and not have another as your residency application is based on a job offer. If there is none, you...

More than legally permissible, the question would be what is going on here - are you working 80 hours/ week?

It does not appear your prior L status should be counted towards H-1B stay. Have your employer get a second opinion.

Yes, it is possible to file for extension based on approved PERM. The timeline of filing is to be considered for eligibility.

It is possible to pursue I-140 despite leaving the country, however certain factors regarding loss or termination of job are to be considered...

It depends on the status of the I-140, your country of birth, and such other factors and whether the non immigrant intent can be justified.