After a thorough market analysis, I reached out to the seller directly and negotiated a fair price based on comparable sales and the property's current condition, emphasizing my ability to close quickly.

It's still a viable solution to your problem.

They can get you pointed in the right direction as far as business licensing, insurance, drug testing, rules and regulations, etc.

Yes, they should be happy to do it and yes, you'll have to find alternative solutions for the buy and rehab.

I have received two offers some time ago from my current credit card provider for a 0% APR direct-deposit (for 1 year).

I am speaking from direct experience, other programs show such a vast different view on how storms come across.

It can be a huge pain to get started but you do get your rent direct deposit every month.

Can anyone direct me to a resource on that. 

If they are coming direct, it is probably because they see you are representing yourself and hoping for a deal.  

if you're still evaluating software, I will be happy to connect with you with a solutions expert here at Buildium to go over what we offer.