Profile review

You can absolutely use that work experience in your application. Given the more entrepreneurial and family business nature of this business you will just need to explain your involvement and experience a bit more than is typical for my more traditional employers. I would focus on conveying two thins in particular

1)Impact/ results
-Most important aspect of how schools will evaluate your work experience, so this should be super clear. Given this is a family business schools will have their antennas up to make sure you have a track record of driving result and impact

2)Interpersonal Skill Development
-MBA programs are all about leadership and teamwork, and they are laser focused on your experiences in this regard pre-matriculation, so you need to highlight your best experiences in this regard

So if you can materially showcase this while describing your work experience you should be in good shape

Hi,
1) Your WE and other issues, articulated well, can really become your top strengths.
2) The way I see the main problem for you is to form your Post-MBA Goals and show the connection.

As already said, approach your big customers, preferably commercial enterprises for LORs. Is not as good as LORs from IBMs & Googles, but will nevertheless get you pass grade or better in that area.