About the work visa in Russia.

I have been to many cities in Russia, large and small. Theoretically, she can help you get a visa, but the reality is that many Russian businessmen doing business in China are illegal. For example, the visa city does not match the actual work city. Doing business should be a business visa. Many people go out on tourist visas or work visas, so it should be more difficult for her to apply for a visa for you. Even if her identity is legal, she will not do the specific process. I suggest you directly find an intermediary company that can apply for a visa and tell them your requirements. They have a variety of overseas identities in their hands. The more legal the identity, the more expensive it is. For example, if you want to do business in Moscow, your visa should be a business visa. You can work for her with a business visa and a work visa. Then your visa city must be Moscow, and your identity is business investigation or translation, which is the most formal. If your visa city is not Moscow, you can stay in Moscow, but you need to hide from the immigration office.