You must give notice before entering, but you do not require permission.Any time I expect a response from someone, I include a deadline for their response and a consequence if they fail.

@Karl Kauper with a SF you can require the tenant to take care of lawn and snow, but they might not be up to your standards. 

I would look for a bunch of Sub To Deals with 2-3% interest rates ...... then rent out for cash flow and huge equity build up when rates are really low (check out amortization schedules and compare 2-3% vs 6-7% with the same balance and length of time - check out the principal portion each month - the lower the rate the higher amount goes to principal PLUS better cash flow).

Quote from @JD Martin: Quote from @John Underwood: Quote from @Collin Hays: Quote from @John Underwood: Require travel insurance that you can make a claim on? 

When you are on the commercial side of the bank, and borrowing on the bank's balance sheet, they have a lot more flexibility to how they handle loans.  

My idea to buy a home is to get an 80% LTV 1st mortgage from a bank, take over that mortgage and give the seller a second mortgage for 50% of the 1st mortgage balance because I need some cash to cover the payments, which the amount of cash would be more than the remaining equity in the home.

I am glad because the permits and requirements would have much tougher.

We syndicated 75%, plus costs of the purchase price and financed the balance with a traditional loan.We shopped around for weeks to find the perfect loan with the best rates and terms.

I also have some interested friends if the work requires multiple people.

There is a reason we lenders require "skin in the game" and experience.