@raul_20. Templar has replied and given some guidance.
He has given you sound advice.
We are an anti fraud site and we do not do "due Diligence" checks for businesses, as we do not have the resources to do this.
We need our resources and members to be directed towards fraud and scammers.
If you need help with a particular scam we will do our best to help, but we cannot unfortunately do the work that a business advisor would do.
There are many business and financial advisers who handle this type of due diligence work, as a business man it may be better for you to contact one of them, as you seem to be needing this type of service on an ongoing basis.
*What the mind can conceive and believe, it can achieve.*