When talking to property managers, ask questions regarding any guarantees they offer owners and refer to any online reviews to get a better idea of how tenants and other owners feel about working with the company.

Luckily I was in a buyer's market at the time, but about 75% of agents did not even respond to me and I could not set up appointments online because I was not a MLS member.   

We use DealCheck to underwrite deals and QuickBooks Online for everything related to accounting and numbers.Classes allow for separate P&Ls for each property.

Apologize if these questions are vague, I am quite new to this.Happy to provide some of the data I have found thus far (though data online is scarce given the size of the town).Thanks!

Been getting nowhere with zoning laws found online and in the local library for Yonkers (in westchester county) as to whether any permits are needed in order to operate such a business. 

You can create your own, or there are house flipping spreadsheet templates available online 

There are so many online hard money lenders.

https://www.biggerpockets.com/forums/93/topics/67638-where-to-find-wholesale-contracts-online

Search for this in a Michigan Public Notice legal newspaper or an online legal notice aggregator site like USALEGALNOTICES and the fount of MI pre FC/FC data will be available to you.

They are a fraction of the price of those who advertise online.