Tax preparers usually charge another $500 to prepare the 3115 calculation schedules per property so that saves you money.  

@Priti GuptaYes, from an accounting and tax return preparation standpoint it is better to have a business bank account and a business credit card from the beginning if you plan on collecting rent. 

If you're an accredited investor preparing to send six figures out to something you haven't bothered to fully understand, you can afford to run it by a fee only CFP (financial planner) to get some professional advice that fits your specific situation. 

To give a brief background, I've flipped 2 properties and am now looking to venture into rentals.

What she said… As I was preparing to say exactly the same. 

I believe we have approached 5 CPA's or tax preparers in Colorado.

In the commercial & private money world its all fair game and case by case.Use of credit cards to purchase properties to acquire/capture equity, create, cashflow, provide additional tax shield/benefits against your income, and improve your real estate investing venture is definitely one way to go about it but it should not be the sole method since there are risks like many have mentioned above.If you're using business cards (linked to your FEIN - federal employer identification number) and it doesnt report to your personal credit then it might be more prudent credit wise because your Fico scores won't tank when you max a business card out versus a personal credit card (drop of 80-100 fico pts temporarily till you payoff).So with prudent timing (funds seasoning), knowledge of how to maintain your ficos so you still qualify for your cheaper conventional money, and how to use the cards to purchase can definitely expedite your REI journey.Most people I encounter would not have the know how to do it correctly as I see plummeting fico scores, in ability to qualify, and many other issues with using cards to invest on a weekly basis.Best of luck,

But realize that there's time involved to prepare plans for city submittal - that can be anywhere from an hour to a couple of days, depending on the complexity of the project.I usually eat the cost of contractor licensing for retail clients, but I might pass it on to an investor client.

Many if not all have youtube videos and podcasts.Other multifamily conferences:MFIN—Various locations throughout the countryVertical Street Ventures-LFI-Left Field InvestorsFamily Office ClubOne thought is and it is just a thought.....if you have $50,000 and are an accredited investor, instead of coaching invest as an LP in a deal.   

I would suggest exploring outside of your local bank as well and exploring U.S-based lenders that work with foreign nationals and compare as banks tend to be more conservative and therefore more limited especially once you venture beyond a single-family household or condo.