After I kept him talking a little bit, asking basic questions about year, size, bed/bath, the AC, roof, ect.

They can limit the # of rentals, the type of pets, if owner occupants or renters can have pets, where you park, flag poles, types of landscaping, amount of landscaping, if you can park a boat or an RV and for how long, what size of house you build, how fast you have to build it, the amount of brick you have on it, what types of flags you can fly...and on and on and on.   

You can make minor adjustments based on the type of appliances (dishwasher, clothes washer and dryer, air conditioning, etc.) and the size of the rental.

I used legal size double window envelopes at $50 per 500 and had the message show through in the top window.

Don't know the size of your multi so assume 2000 sf of flooring.

The size of the yard.

Depending on the size of the house, how much you bought it for, and how much money the seller has, this might not be worth pursuing legally. 

It may be hard because the size of the rehab but get an GC to give you an itemized list of repair cost for your rehab and sub out the items you feel can be done cheaper.4.)

Keep in mind on your path, you will need to add to your team as you grow in size.

Creating a diversified real estate portfolio of different sizes and types in multiple locations, with varying financing structures and cash-flows, can reduce risk and create steady income.