I took over doing a 1040C business return.  The prior accountant refuses to provide the depreciation history.  This is what I know:

7-year property 1,000 7 yr recovery MQ conversion 200 DB  $36 for 2017

15-year property $785 15 yr recovery MQ conversion 200DB $10 for 2017

5- year property depreciation deduction $925 for 2017  (based on a printout I think its $18,500 base

Nonresidential 10-2017  $7,313   39 yrs  MM   S/L  $39 for 2017  (That 1 I have no issue)

This business opened around 10/15/2017

2018 shows $7,572 but the accountant did not include the 4562. (based on backup there were no additional assets)

2019 shows 8547 no 4562

I am doing the 2020.  

Any help.  I cannot make the 2017 numbers work.