As they see their money is safe and you're succeeding with your plans, they'll usually ask to increase the amount of money they loan to you.

Other than paying for an appraisal or BPO (and maybe a credit report), you should not pay a lender anything until your loan funds.

We were trying to buy a loan that was in default and the current lender was emotionally attached and has it listed for over $2M when comps are $1.5M. 

Or put in your interest rate here, and your loan balance there.The art is where I think most people struggle, and I don't think this can really be done without real world knowledge.  

So they often will reduce the leverage of the loan (getting 65% instead of 75%) or deny it (which isn't as likely). 

I flip with cash, not loans, mainly because there are not enough deals out there that meet my highly selective acquisition criteria, so no need to pay interest on cash otherwise sitting in a money market account. 

If you can find someone to loan you money for this endeavor please share their information with us all.

My duplex - built 1989, 2,060 sf, 2 bed/bath, 1 year old roof, value if I subdivide (county already approved) and sell each separately $150k each ($300k total)Investor duplex - built 1995, 2,300 sf, 2 bed/bath, 5 year old roof, value around $310kThe investors initial request was for an equal trade and they would pay realtor fees, which I replied wouldn't be equal due to buying/selling costs (recording fees, title insurance, closing fee, survey, inspections, loan fees, 1031 fees, accountant fees, repairs), taxes would increase due to new sale price, I'd trade a 3.75% mortgage for a higher one, and I'm on the 10th year of a 30 year loan so resetting that to a new loan would restart amortization and pay more towards interest.

FHA loans didn't contain DOS clauses until 1989, VA loans 1988.  

If you are moving from your SFR to another property, then you should be able to get a 5% down loan or even 3% if it's FHA.  25% is only if you won't be living in the property in my experience.