(Higher than normal rent.) and I will give you the option to buy the property in 5 years for selling price minus x, maybe minus some of Y. 

Depending on income and credit there are always credit card, personal line of credit and personal loan options available out there

I have found a property that I like for my new primary residence and I am trying to see if the seller is open to a longer duration close where I rent from the seller for 90-120 days to allow enough time for the investment properties to get leased.I am also considering asking if they would be willing to explore a seller-financed option but I don't know how to structure that so that a regular seller might find that more attractive than a regular closing. 

Connect with @Joseph Chiofalo for some VA options of 1-4 units.

If this isn't interesting enough, posit your own variables but try and keep them realistic.

The 15yr would net right around 0 cashflow, so not an option. 

Saying that, we are only interested in buy-and-hold investments that offer positive cash flow upon purchase and some minor non-structural reno's. 

I am currently full time employment in a reliable position.

My rental units have poor insulation in a building I own and I’m trying to evaluate how to improve and the best way to do so.I’ve heard that putting spray foam insulation is an option.

Vernon will enact any in the future, but generally speaking properties outside of city limits tend to have less pressure to enact restrictions.It's always important to have multiple pivot options if your initial strategy dosen't work out.