Does all financial aid requirements include being registered with Selective Services? If so then a convicted felon will not have that opportunity. Is this true?

First its not a good idea to piggyback your question on someone else's. This can lead to confusion. You should start a new thread. So I've moved your question to its own thread.

Second, I don't recall regiostering for Selective Service being a requirement for financial aid at all.

My oldest son found out that a prerequisiste for financial aid was being registered at Selective Service - this was 3 years ago.

This from "Financial Aid Answers" -
Selective Service Requirements For Financial Aid

To be considered for federal financial aid (and most state aid) through the FAFSA, men aged 18 through 25 must be registered with the Selective Service System. This requirement covers men residing in the United States who are U.S. citizens or noncitizens. However, there are a few exemptions to the requirement:

Males currently in the armed services and on active duty (this exception does not apply to members of the Reserve and National Guard who are not on active duty);
Males who are not yet 18 at the time they complete their FAFSA (an update may be requested by the school);
Males born before 1960;
Citizens of the Republic of Palau, the Republic of the Marshall Islands, or the Federate States of Micronesia, unless they have resided in the U.S. for at least one year for reasons other than a student or government employee;
Noncitizens who first entered the U.S. after they turned 26;
Noncitizens who entered the U.S. as lawful nonimmigrants on a valid visa and remained in the U.S. on the terms of that visa until after they turned 26.

There are several ways in which a male student can register for Selective Service:

Answer yes to the FASFA questions that asks if you want to be registered for Selective Service (must also answer that you are a male);
Register online at the Selective Service Website;

Register at a federal post office
When the FASFA is filed, a match is conducted with the student's FAFSA information (name, date of birth, SS#) and the Selective Service System. If the match is confirmed, no action needs to be taken by the student or financial aid office. If the match is not successful, the student will be notified via a comment on the Student Aid Report (and most likely by the school, too), and he must resolve the Selective Service registration problem before the financial aid office can certify loans or pay any federal student aid funds.

There is an agency that states they help those who have been convicted of a felony:
https://sourcesforstudents.american-data.net/finanp.htm

Also read the following on Law to Aid Felons:
Law to Aid Felons - News

An article about assistance:
Google Answers: Grants/Scholarships for released felons

Hello t:

I'll bet a convicted felon can register with Selective Service.

excon

From what I gather, convicted felons are not exempt from registering with the selective service. If they are currently incarcerated then they do not have to register until they are released, if they are still within the age bracket.

Depending on what the felony conviction is for, even if they are registered for the selective services, they may still not be eligible for financial aid.