Purchase price: $745,000 Cash invested: $400,000 Sale price: $745,000 Amazing 1 bed/2bath East Vail Creekside condo at the Vail Racquet Club.

Try looking at it a slightly different way with some quick math:$900,000 sales price$22,500 cost of purchase (appraisal, points, lender fees, title fees, etc - 2.5%)$90,000 cost of sale (10% commissions, closing costs, buyer credits)$64,000 carrying costs (6 months at 10%)$25,000 additional carrying costs (6 months taxes, utilities, HOA, misc)$100,000 rehab cost (the number used above)$68,500 profit = $530,000 max allowable offer.Some numbers may be a bit high, others may be a bit low. 

Sell the entirety to yourself (through an unrelated party) and do a 1031 on that sale. 

probably reduces marketability and sale price of the home.You mentioned spelling out "base rent" among some other obligations.

Most really successful investors I know were in the trades and/or real estate sales and are self educated and millionaires a few times over.

A 1031 exchange will defer that and also defer the gain from the sale if you find that the extension doesn't apply to you.

What is everyone's experience with this regarding the due on sale clause once lenders are notified?

Looking online, responses say it adjusts every 6 weeks or so. it has never reduced so far.

They launched sales 2 weeks ago and are already at 45% contracts. 

Escrow will do what they are told, so long as the buyer and seller agree.Even for a “standard” sale, virtually every rehabber we know will make a cash offer with a quick, five or ten-day close.