I am trying to invite a person that I met in Ghana and so far he has acquired his passport but need his visa to come to the United States. What is the qualifications to have in order to get a visa to the United States.

If he has all of the information that they asked for... then how long would it be for them to grant him a visa to the States. It only took me 3 days to get a visa with express money and I was granted it quickly. I would like to know because of the problem that it is hard for 3 world countries to get visa to the United States.

Can someone help me with whether he will get the visa?

To obtain visitor's visa, the applicant must prove that he/she has ties to his/her home country, not likely to seek migration, and has sufficient funds for the trip. It may take up to 3-weeks to get a visa depending on workload of the US consulate.

Please read the link below, additional info can also be obtained from the US consulate in Ghana.

https://www.askmehelpdesk.com/visas-passports/ghana-passport-visa-fraud-288039.html

And this is a person you actually MEET, not a online meeting, Ghana has the largest fraud for people claiming they want to travel to the US, Lying about the amount of fees, passports are very cheap to get)