Vet the hell out of those wholesalers, check with other local investors, check their references, etc.
I find 95% of wholesalers are jokes, don't find decent deals, bend comps to fit their deals and by and large don't know what they are doing.
The 5% of wholesalers that are solid are hard to find as they already have a solid buyers list of 5-10 cash guys that snap up everything because they are truly wholesale deals.
It sounds like you're setting up to be a serious investor, accumulating a couple rentals on an annual basis. It would be a HUGE value add to go after your RE license so that you can cut out commissions, have direct access to MLS and be first to bid properties as they hit the market.
Finding a decent real estate agent that knows investors and what they are looking for is difficult. And even after (if) you find one, you still have to pay for it. Why would you do that? If you're going to be an investor, be an investor and don't sub out your acquisitions/liquidations or allow yourself to be second place to getting bids in, realizing comps, etc.
/\ great advice in the post above re: finding real comps without direct MLS access.