Would you be able to feed all of your units monthly under such a circumstance?

There are a lot of options and it depends on your particular circumstances.

Since you mention one of the conditions to getting started for your wife was paying the house off free and clear I'm curious if you've discussed with her the potentiality of getting a HELOC for certain real estate uses (or maybe even getting a HELOC but coming to an agreement with her that you'd only use it in circumstances she approves of). 

I still on Friday helped a client negotiate a home under asking that appraised for $20k over our negotiated price, and that was in a competing offer situation.Offering too much on a home is not the way to go in most circumstances. 

I want to offer a service that helps homeowners find the best way to sell their properties depending on their circumstances--whether it's through the MLS, wholesale, or even FSBO.

Can't really answer these without knowing your facts and circumstances.

Thanks to certain life circumstances I have had to put real estate aside for almost a year and I am hesitant about trying to pursue it again.

That gets read into evidence, and the jury in the civil case looks at you and self-righteously decides to break you as a warning to all heedless, neglectful, negligent, arrogant young real estate investors.

@Ron Willbanks I've seen people do it for state of mind and also to partner with others so that they can each invest half of the minimum in double the number of deals (to increase diversification) but, as others have said, it's not necessary if the Sponsor structures efficiently.Unless you have a special circumstance, it's kind of a waste of money.

It's truly an unfortunate circumstance, but if anyone is interested in letting go their difficult assets, feel free to DM me.