There is no seasoning requirement involved since the property isn't a short sale and it isn't someone buying REO from a bank with a seasoning requirement.

Common sources of such properties include:Foreclosures: Homes that have been repossessed by banks due to non-payment.Distressed Properties: Homes that are in poor condition and need a lot of work.Auctions: Properties sold at auction for below market value.Off-market Deals: Properties that aren't listed on the MLS but are available for sale through direct outreach or networking.The key is to buy a property at a price low enough to ensure that even after renovations, the home will appraise for a higher value.2.

There's a good chance the issue(s) you face has already been discussed and answered.Ask questions in the appropriate forum.

Simply covering the mask as sales pushers. 

On top of that they left the key box open and all the keys to everyone’s room were left in the open and the person who does door to door sales told us there’s lots of keys right next to the garage.

The only open position they have on their website is a sales position and it seems that for a company of their scale and caliber, they would also be hiring for other positions as well.

The biggest challenge we faced is the property's proximity to a railroad, which has proven to be an impediment to the sale.

That sounds like massive renos (ie new floors, painting...).Yes as you acquire more properties, the chances of having multiple vacancies (no matter how leases are staggered) increases.

Quote from @Patricia Steiner: Price cheaper with cash sale? 

I found a nice established one for sale.