We have lots of automated processes - All online rent collections, inquiries, signature requests, and late fees.

I’m willing to accept higher interest rates on a line of credit as the overall $$ amount is significantly lower than refinancing an entire property at the above mentioned 6-7%, not to mention restarting the amortization schedule all over again.

Can I then refinance the property and take some money out  to use it as a down payment for another multifamily property without paying any capital gains tax on the money I take out from the refinancing?

Hey @Tarcizio Goncalves, QuickBooks Online allows for everything you need. 

I’m considering refinancing to lower my monthly payment to around $850 and potentially using $30k-40k to invest in one of several ways.

I'm looking to list my property with them but read some horror reviews online from guests (but not hosts). 

For building a buyers list, I’d recommend joining local real estate investment groups, both in person and online.

I plan to use the BRRRR strategy, financing initially with hard money and then refinancing after the rehab.

The successful wholesalers I know spend $8,000 + per month on online marketing, SEO, SEM, landing pages, lead conversion, etc.  

Welcome to the BP online community.