Here's some stuff to start with in thinking about how to do it-https://www.biggerpockets.com/...The next thing would be to learn everything you can about the particular strategy you want to implement--how to actually profit, what are the risks, and what are the mitigations for those risks?

I just ask that next time if there is something preventing it, give me a chance to address it."

I would certainly recommend a seperate bank account for any charges and income for teh rental making it easier to track, especially come tax time, thus preventing comingling of funds. 

Or I should be implementing plan A now. 

If you buy it for 600k, and it’s worth 700k prior to you spending a dime, then you have 100k is inherited equity.Now, if repairs are needed, those that are necessary for safety come first (heat and AC would fall here), those that will prevent damage come next (roofs), those that deliver what any tenant would expect come next (appliances).  

I will be implementing wholesaling techniques as to acquire a portfolio of cash-flowing properties.

Are these contracts just trying to prevent us from using other realtors? 

Cover in mattress encasements to prevent bed bugs in the future.

Will implement your suggestions.

That will prevent prices from falling too far.