I have a wife and two children.

I plan to keep all I purchase, and pass them along to my children, nieces, and nephew.  

As Lee indicated above, simply provide residents with a lead based paint disclosure and the associated pamphlet from the EPA.If you have a lot of peeling paint you will want to address that so that chunks of painting are not landing on the ground or easy for someone to ingest e.g. children.

Light staging can be had for as little as $450.00 -  and I tend to see in the $2000 range for a small home for furniture staging, but the pricing really varies.  

I find that if tenants are staying close to a year, they typically have their own furniture and see it as more of a permanent move, as in they are not keeping another primary residence somewhere.

What's up with the creepy children on the ceiling. 

Hey there,So currently work as an apprentice carpenter for a custom cabinetry and furniture shop in the South Bay.

This is an excerpt from the local Rental of Residential Property Act:"...Notice of termination where purchaser seeks vacant possession(1. 1) Where(a) the lessor is the owner of residential premises comprising not more than two rental units;(b) the lessor enters into an agreement of sale of the residential premises to a purchaser; and(c) the purchaser has sworn an affidavit that he wishes to have possession of the premises for occupation by himself, his spouse, children or parents or the parents of his spouse,the lessor may serve the lessee with a notice of termination to be effective not less than two months after it is served and the notice shall be accompanied by a copy of the affidavit referred to in clause (c)...."

A fellow investor told me courts ruled against evicting non paying tenants because they had children and it was winter.Another investor friend is successfully renting units in MA, however they only rent luxury condos to single professionals in towns such as Burlington and North Andover.  

An example of a property I visited is 80 rooms, 40 down pending repairs (no AC, smelly, bathroom issues, etc), 5 was used for laundry (owner somehow installed residential grade washers), linen room, furniture storage, etc. to top that, the rest is not occupied fully all the time.