These are the deals I'm able to do pretty regularly in my area.

The brokerage I work for regularly sells 40-50 off market properties each month and as a new investment consultant, it is my goal to sell at least 3 properties each month. 

How much will that property rent for and what expenses will you regularly incur? 

Yes, he realizes there is a short term opportunity cost in that he could be charging a higher rate to retail customers, but the upside of the profit from the flip or equity in a BRRRR outweighs that.To me if the contractor partner started marking up his labor like a regular job it would be no different that the money partner starting to charge additional interest on they money put in or charging fees for borrowing for other sources.

You shouldn't have any problems finding a regular renter willing to pay market rates. 

I know that that the concept is that I cash out and get the new property…however, since these are regular mortgage loans, how do I qualify for several properties on my salary?

But, if inflation outpaces rising rates or demand continues to outstrip supply, then valuations would not necessarily drop if you see increased rents that continue to pay for the increased costs of borrowing.Of course, while inflation may save you from seeing lower valuations, the purchasing power of all our money has gone down, but you will still be doing better than someone who didn't participate in inflated earnings.

Depending on the state laws, your tenant may not be able to get rid of his guest at a later date without going through an eviction -- would be good if he knows that ahead of time and has the tools available (ie guest being a subtenant, not a "regular" tenant). 

I’ve called a few and some have even said there is a two to three year waiting period citing covid + high demand + supply chain issues.

Cash purchases should be avoided, you will loose credibility with your partner.A cash withdrawal from the company account might be broken out for small supply purchases, for example, or copying a key, but each purchase must be verified with the receipt; receipts will match the total cash withdrawal.