Thank you for your multi-faceted question.
Your military pension issue is important. After 20 years of marriage, she is entitled to a share of your pension, perhaps half. That will depend on how long you were in service during the course of your marriage. I would refer you to a specialist in Florida on military divorce, Capt. Peter Cushing (USN Ret'd.) who practices military family in Tampa. He is a retired JAG and we have used him before on military pension cases and he is good.
Let's move to the property division questions (referred to as ‘equitable distribution’ in Florida). Yes, she may be entitled to one-half of the marital appreciation of any assets you had prior to the marriage under certain circumstances. (For example, if marital efforts or money were used to improve the asset.) And she may be entitled to one-half of the equity (fair market value less debts, such as a mortgage) in any marital asset. You should begin with the valuation at the date of marriage (or, if purchased during the marriage, the date of purchase) and end with the date she separated from you due to the long five-year separation. You may need an accountant and/or appraiser to assist you here.
Finally, alimony. I would argue strongly that as she has been gone for five years, she should have moved on with her life including securing any employment. After the equitable distribution which will include the military pension, she may not need any alimony.
These are not simple issues and I would highly recommend securing legal counsel to assist you prior to even answering her attorney's letter. It is time for one of you to file for divorce and end the relationship.
Good luck!
Answered on Sep 23rd, 2018 at 3:05 PM