Im wondering details how commercial loans work.  

A key component to cash flow will be loan terms..you could consider trying to incorporate a seller concession towards an interest rate buy down or costs to help improve cash on cash returns.

The intent is torefinance them once I am done with the rehabs and I want to stay clear of theseasoning restrictions often seen on conventional loans.

(we are past inspection & appraisal - just waiting on loan to close)- There wont be any photos of updated carpet, kitchen cabinets and countertops- I can't show the property in person considering I dont have the keys to proeprty yet- Would be gathering leads for people of who are intersted in hopes of getting it rented out faster If I post the property now, I could probably have a tenant lined up to move in August 1st.

Here are a few ideas:- HELOC: depending on how much equity you have in your property, you may be able to apply for and borrow against that equity- DSCR: BP now has a find a lender link and I'm happy to recommend mine as well if you'd like; there are lenders who do loans based on the future rental value of the property- Borrow from your 401k: typically you're able to borrow up to $50k and if you have multiple 401ks, borrow from multiplesHopefully this gives you some ideas of other options to bring in some cash for your investment!

Could get a personal loan beforehand to help cover the difference.  

Let's say I have 500k down payment and borrow 500k, and the monthly mortgage payment is 5800, and out of that, 4800 is mortgage interest, and I pay 2500 annually for insurance and 10000 for property tax, could anyone ...

There are some very high LTV investor loan programs.

Cash and credit are key when it comes to fix and flip loans.

They all appreciate but peninsula is more stable in downturns and recovers the fastest, I witnessed this myself in 2012 further in east bay was still about 40% down and peninsula and "tech" cities already recovered fully.I am not sure you need a loan or not, recently I asked my mortgage broker he told me for a second home it would need to be at least 50 miles away and also in a city known for vacation activity .