In order to find the best deals, you would either need to have specialized knowledge to spot things others missed or rely on a curated source to find your deals for you before they hit the market.

They'd source these services, I'd pay for them..These charges are usually included in the closing costs of a conventional loan, so again, this sounds legit thus far. 

I wouldn’t use list source or propstream for anything over 4 units.  

Ideally you'd want to work with  a mortgage broker that can source numerous lenders for best pricing and service.

Source of income matters.

There are expenses and repairs that you'll want to check into and keep track of, and if you're home is still your primary residence it may also be a source of stress as well.

@Jason BrownYou can source for private Money Investors to fund your deals, but they usually would require you to have a skin in the deal.

Removing their personalization may weaken their roots, but may be appropriate if what they are doing is offensive versus just different taste.

My goal would be able to invest as my main source for income.

Is it recommended to use a crm like propstream or flipster what is your take?
to find problems and stack them for marketing?