The word college might mislead someone from the US. In the US, you attend college after you graduate from High School. It is similar to the meaning of the word university, normally differing in the size of the institution of higher learning with colleges being smaller than universities. Here the world collegio is equivalent to high school.
Opening a school that teaches from K through 12 with a US style curriculum could work here. Others can tell you how difficult it is. One example of something similar is the International School in Sosua, but I do not know how close they really are to US standards.
ISS follows US standards. It is accredited by the corresponding agency in the US. It also teaches a US curriculum, which may or may not meet the desires of the parents enrolling a child, depending on their home country. Additionally, ISS graduates get BOTH a US degree and a Dominican diploma. That is helpful in gaining university admission in the US. And if you cannot make it there or prefer to attend in the DR, you can gain admittance here.
Now, I am not promoting ISS, rather I am relaying the credentials of the better international schools in the country. The OP did not indicate where he/she is from.
Whether such a school is needed depends on the location and the schools presently available.
Know, if you want to do it right, you MUST be a professional in international education. You should know how to apply for accreditation, which may take years to accomplish, and you should have sound financial backing.
On the other hand, if you are interested in providing online learning and have students from families with money, that is quite a bit easier to accomplish.
And, if you are simply interested in providing a first world education to children with no access, then go for it.
Lindsey