The strategies I'm most interested in are Flips, BRRRRs, small multifamily as well as short/medium term rentals.

Quote from @Anil Shah:  Short answer - if they originate a loan that they want to sell to Fannie Mae and Freddie Mac, they need to follow their guidelines.

Old post, but in the short-term the world changed with the recent passing of HR 5376.

Underestimate the costs and come up short needing the funds?

Credit pulls for the same type of loan within a short window (usually 14-45 days) are treated as one inquiry, so your score should be fine.

Short term my credit score did take a hit, but once the promotional transfers were paid off, my score jumped higher than it was before.These days, the "pure" zero percent transfers don't seem to be around anymore as they typically charge a 3-5% balance transfer fee as part of the promotion, but this is still better than current HELOC rates.

It's a short term lease.

Gross Margin is an important calculation for developers/builders.Gross Margin = Gross Profit / RevenueWe shoot for a 20% gross margin on our New Construction HomesReal #’s:Home Sales Price: $374KClosing Cost: $18,700Cost of Construction: $258KLand Cost: $30KGross Profit = $67K$67K/$374K = 17.9% Gross MarginCame slightly short of our goal of 20%Homes Values and Build Costs are constantly fluctuatingI wish we had a crystal ball

So you need to develop your checklists before you bring your first deal.  30 days is a very short time to execute and learn.etc etc.Use the above to start the development process for your wholesaling efforts.

Rent would probably be a short term nightly basis.