Looking at a potential real estate investment and I have all the cash flows (after debt service) and anything else I would need I am just lost on a couple of things I am being asked for...

I am looking for a market a little closer to home (Plymouth) with potential.  

I know many are focused on new construction in this market, but I am looking for someone doing rehabs in the surrounding areas right now to look at a potential deal I may have and tell me if its good or not.

Some potential drawbacks to keep in mind are:Additional closing and loan origination costs (two transactions/mortgages instead of one) - speak to your lender and title company about costsTwo insurance policies instead of one - probably close to double the insurance cost as compared to a duplex - get a quote from a good insurance agent and compareTwo sets of property taxes instead of oneThese certainly aren't deal killers, and the benefits noted above may outweigh the disadvantages.

But, at some point, you have to trust people.I also agree on the potential issues with the current tenants showing the property.

If potential owners can't get qualified financing then units dont sell and thus prices decrease without rental restrictions.

Want high cash flow but potentially difficult tenants, invest all in under $30k and bring in $650-$800/month in certain areas.

My suggestion would be to have at least 1, if not more, estimates ready to present to the potential buyers.

Without pulling capital out, you will have more equity, and could potentially cash flow better on that 1 property, (ie. if you have the property completely paid off, you may cash flow very well) but is that the best use of your equity? 

Some people love the sandwich deal, but be prepared to potentially deal with headaches, because they do happen every once in a while.At the end of the day, which strategy you go with is entirely dependent on how much risk you're willing to tolerate, and whether or not the potential reward justifies the risk.