If Subs pulled permits, and they are not complete, you will need the contact info for the subs used.5- Perform a photo documented site inspection, written detail of unfinished work directly covered by the language/scope of work description in your contract. 6- If permits are complete, signed of as FINAL, no further inspections required, then solicit an estimate from another contractor for the list of unfinished work.

Are there any tools I can use to determine estimated profit?

I wanted to use the free "rehab estimate sheet" but it prints out with an extremely small font and gray instead of black.

Either they did not do their homework right (appraisal comes in lower than their estimate, insurance/taxes are higher than their estimate, property did not have clear title, and/or the property has deferred maintenance) or they are shopping without having any experience in the industry. 

Most people estimate 5%. 2.

Do they qualify for a DSCR loan with estimated market rents (use long term average rents, not suped up STR or MTR rental income to be safe).

Hey y'all,I've had a lot of previous experience with rentals (single & small multi family, STR) and did my first flip in 2023 (where I lost a very small amount due to contractors taking 3x the estimated timeline), and I'm looking to finally get into serial flipping.

Could anyone give me any estimates of expenses and cash flow based on experience? 

You can use generic estimates for each of these expenses (which is advisable), but then readjust those estimates for any specific property you are looking at (seriously).

Since there is already a contract in place saying a real buyer is willing to pay X amount, and an appraisal is an estimate of what the market will determine a property is worth, the contract price is usually what the appraisal comes back at or near in my experience.