What's the best piece of advice you can give someone just starting in multifamily real estate investing?

Can try to reposition to Class B, but neighborhood may impede these efforts.Vacancy Est: Historically 10%, but 15-20% should be used to also cover tenant nonpayment, eviction costs & damages.Tenant Pool: majority will have FICO scores of 560-620 (approaching 22% probability of default), many blemishes, but should have no evictions in last 2 years.

I'm wondering if anyone can share some experience here. 

As far as the 10 month lease, yes you can do a lease/ rental agreement for any period of time.

Here are a few suggestions on how you can maximize the wealth of information available: Check out the blogs and podcasts, or take advantage of the search feature (magnifying glass).

can I add multiple users for free?

I can also refer you to some great lenders in Ohio, who will be able to answer your questions on financing. 

I have a really good insurance broker that I can recommend you to. 

Yes, you can be double-taxed by both the U.S.

The only two things I can suggest are: 1.