I don't think your first property needs to be perfect, but doing the work in advance gives you the possibility of refi (in a good rate environment) or more equity on a HELOC.

We have the highest Realtor count per capita is the U.S.

How best to do that? 

We need the cash to mostly just tie us over untill we sell the property, so 150,000 is on the upper end; 80,000 and above would probably be sufficient. 

Quote from @Dennis McNeely: In a sandwich lease option, the investor exercises their option with the property owner to purchase the property when the tenant-buyer indicates they're ready to exercise their option and purchases the property.

i have seen many do very well getting on a team.Myself personally I would concentrate on listings 1000%  Buyers only if well knownand wont waste your time. 

I think overall life satisfaction is very important so ultimately have to do what’s best for you.

I'm have been asked to enter into a partnership with an experienced investor, and I'm not sure how to or the best way to structure a partnership.

They require all cash to buy so the people there have money.

The land is on two tax lots so my plan is to sell the extra lot immediately after closing for a projected $275K.The property on the other lot will be a fix and flip with projected costs of $240K and an ARV of $750K.I plan to use a PML of 2 points and 12% APY for 70% of the total cost.