I am new to real estate investing, and am actively looking for properties to wholesale.

In that scenario your investment could be at risk if you aren't able to make it cashflow after paying for all expenses including property management.As a former US Marine, active real estate investor, licensed CA agent and property manager I'm able to speak your language and can help you avoid extremely costly mistakes. 

We’re now seeking a loan to pay back other investor.

They are very basic machines so easy to fix.The Airbnb expenses I already account for in the income, however what isn't taken into account is the income taxes on that active income.  

In some cases you can keep the corporation active and operate a "frozen" plan. 

Any one here to give more insight ?

I own a few rentals and recently decided to actively start building my portfolio.

I'm seeking how best to manage the disproportionate expenses during the initial phase of rehab.

I know there is a law that you can not originate a FHA loan for your buyer client but does that mean you cant have both active? 

Baltimore allows for multiple house hacking activities.