Most every manufacturer will say if they meet egress...but it's normally just a little asterisk with a note at the bottom. Anyway...you need 5.7 SF of clear opening with minimums of 24 height and 20 width. So a 24 tall window that was 6ft wide would be ok, or 20 wide and 6ft tall would pass. I just used 6 ft cause I'm too lazy to do the calculations. Double or single hung windows will normally be slightly less than half of the lower sash dimension. Casements can meet code but you may need the egress hardware for smaller ones. Good description here...Egress windows: understanding

Is your door the same style as shown in the photo? If so you can glue a piece of paneling or other material over the entire recessed area. If you cut the piece as large as possible you end up with a small gap around the perimeter that can be caulked or covered with moulding.

Your door and house so it's your call but we replace doors instead of repairing them. And the tenants pay for it regardless.