Any tips on the most useful tools to get to know quickly would be greatly appreciated. 

So I quickly tried to learn everything I could about analyzing multi-families.  

Quick introduction.

It's supposedly the best building in the complex, and all-in-all fairly clean, attractive and safe.Situation:There are current tenants, a family who has been there 7 years who do not plan to leave (his elderly mother lives next door).

I am definitely a "do-er," and I was first attracted to REI through articles on flipping, thinking to do a live-in flip and do what work I could myself.  

Electricity is more expensive than gas and the savings in that make it more attractive to your tenants.

Cash buyers generally push prices down as low as possible with the promise of closing quickly.

I had a quick question for those of you that use a professional property manager. 

I was planning to give multiple bids like 70K in cash and quick closing or 100k with conventional mortgage.

In  the meantime can  my GC pop by and take a quick look at it?