Part of my strategy, as everyone's, is to expand my network.

I'm a developer, landlord, flipper looking for a long-term CPA to work to grow the business by setting the optimal tax strategies in place.

Buy/hold strategy.

When underwriting I usually use 5% of gross rent for cap-ex, vacancies and maintenance as place-holders/quick rule of thumb absent better data.

I'm curious if my living in the house before converting it is going to prevent me from leveraging this tax strategy.

My wife and I started with house hacking, it continues to be one of the most efficient strategies in New Jersey.

For example if I want to utilize the BRRRR strategy I will eventually need to pull out cash to reinvest.

Especially if you set up with the lender going into it, but set it up as a 'delayed finance' that would recoup ~85% of the purchase price along with a small rehab escrow to reimburse you for the rehab that you plan on doing.Then, just set up with the lender that you are working with that your exit strategy is to 'refinance', which is true, but then refinance with a conventional lender and everyone is happy.Is that along the lines of what you are planning? 

Current rates do not help your case around cash flow, but I like the strategy you are promoting for room to room rentals.

There are many other loan products available in addition to Creative Financing methods you can learn about that don't look at your DTI and are "asset based".The ideal loan product really just depends on what strategy you're looking to implement, BRRRR, Fix/Flip, Short Term Rentals, etc...HMLs(Hard Money Loans) can be helpful for Acquisition but depending on the price of the property, the fees can eat up much of your profit, especially if there's not much "meat on the bones".