There is no qualification for the agents beyong their willingness to pay for the leads, so anyone searching for an "investor friendly" realtor could very well be getting an agent who has never done a deal professionally or personally.

I'm new to the game and wanted to know how I start the qualification process for a 203k rehab loan?

All factors are considered when placing any transaction with a particular lender, including guidelines, turn times, type of transaction and qualifications of each borrower.

Qualifications are based on many factors such as down payment, credit, loan amount etc.

I will go with him and seek the proper connection to advise me about qualifications and available properties this week.

Hi Elliot,[This is not Financial advice - I do not give financial advice][This is just my personal feelings on this]All I can say is it "probably" would make me uncomfortable (if I were aware of it).Even if you met the Federal qualifications to participate in my deal with the debt post closing. 

Have a pre-qualification loan letter that states how long it will take to close you and the maximum loan amount you qualified for and submit with your offers.  

Thus, finding a credible lender and chatting with them about a pre-qualification / pre-approval is an absolute necessity.Finding a seller who is willing to offer seller financing, is going to be a tough find. 

If your question is about the minor change to qualification rules, then the effect will be nearly irrelevant. 

It's fairly rare to see seller financing on MLS properties.Beyond that, you didn't specify which people you'd talked to about mortgage pre-approval or pre-qualification.