In some places you can't put bedroom door locks on unless you are a boarding house, although I am not sure if any one checks that.Another thought is if you don't have central air there some boarding houses that have a monthly air conditioning charge if you put a window unit in. 

And of course another personal Bias is I don't recommend anyone putting training on a CC unless your just looking to get air miles and you pay your cards in full every month..

So my question is if i let the home air out well is it safe? 

Can I air bnb it in the first year while I am gone, that would be renting so I feel like maybe not?

At this moment i am at Ramstein Air Base and im fairly familiar with the area around me and i believe there is great investing opportunities here.

In 2024, 2-4 family properties in Nassau have been sold nearly two weeks faster than they were selling last year.Further indicating a hot market, median sale prices have increased by 11%, which is more than any of NYC’s boroughs.The top area choices for 2-4 unit multifamily investors have been:Valley Stream & Port Washington: 14 deals, respectivelyLong Beach: 11 dealsLynbrook: 9 dealsSuffolk CountyLike the Bronx, Suffolk, too, saw a 43% increase in 2-4 family inventory.

The game might be slightly different in some areas where there aren't as many 2-4 unit buildings, but there are always strategies like room share, renting out the basement/attic, air bnb, etc.

No to air bnb.Really don’t want to chase bad dollars with good dollars. 

I am actually sitting in the airport going to close on 2 doors in an area where they are. 

I’m active duty Air Force with four properties, three are VA loans.