So a loss of about 55k We did a lease to own option so I could immediately take over expenses but keep their primary resident loan and interest rate.We agreed to a deal which would cover all their expenses at closing, their remaining loan balance, and $45,000.

EDUCATE YOURSELF - yes, it will take time, but will lead to a selection that better meets your expectations & avoids potentially costly surprises!

The Solo 401k trust would also take title in accordance with the agreement reached, the purchase contract and note.

It's a very competitive market there.I think your 203k approach will likely be a leg up in deal hunting as you'll be able to take on an investment that needs a bigger scope of work while others might be looking for a more standard value add situation.let's connect. i'd love to help however i can

Also Lets Say i take out the 155.000$ Loan and never pay it would it be like selling my house where the lender keeps my house as collateral for non payment Or do i loose my House and have to pay back the lender155,000$ that i barrowed? 

This is something I try to live by and teach my kids if I can - "A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly.

I have done it with some contractors taking Paypal where you can use a credit card on that site with a fee, or QuickBooks is another one too.

Unless there is an emergency situation, take a lot of photos and call your insurance agent before doing any repairs.

After a year you finance, it gets into BRR situation that is no money from your pocket as equity takes care of downpayment and you own the building.

A PMC cannot risk a ticket or lawsuit because an owner takes too long to approve an emergency.You do have the right to be frustrated that you weren't informed about the repair as it was being done.Suggest you discuss with your PMC and see what they say.