Am I eligible for the LTR Visa in Thailand with my current employment and income history?

A friend currently in the process had to show bank deposits for the last 24 months showing the total for the last two years did in fact equal greater than $80K

You might need a conversation with your employer, to see if they are au fait with respect to Permanent Establishment as defined in the Thailand-Finland tax treaty. PE is about the risk of your company being required to pay corporation tax in Thailand as a result of activities you do (I don't know what your job is, or might become). Note, corporation tax is levied on companies with PE conducting business with Thai industry. For companies with PE but no Thai business, they still have to file accounts, or risk a fine of 5% of global revenues....... A company might have to seek legal advice, and they would be entitled to pass those costs onto the employee, unless there is a business need for you to be in Thailand. Some companies are also pursuing clauses to pay a local rate of pay, so significantly less than you are making now, although the cost of living is lower.

The average past salary should do, if you can reasonably proof it (I.e. by notarized tax returns or the like). Your current employer needs to be a public company listed on stock exchange or a private company that is operating for at least 3 years, with a minimum combined revenue of USD 150 million for the last 3 years. You need to be a direct employee - not a freelancer. The LTR website is quite detailed as to criteria and required documents: