Family immigrated to the US 1 month back. 3 children have found jobs at a nearly plant and the father will try to find a job.

Costs before that (during remodeling) are added to the basis.2.

85LTV ask on a LTR rental is a tough ask, when adding an STR factor, nearly every lender will reduce max leverage by 5%. 

Quote from @Benjamin Bieber: Listening to the Bigger Pockets podcasts I hear the ads for rent to retirement all the time.

Take pics of all the junk (I mean high class heirlooms, which is what you'll say in the ad) and put it on craigslist asking for offers.

He is thinking about adding a 2bed/2bath to the backyard or next to the house.My mom is 60 and my dad is 59.

(Of course, there is a factor that higher rating will increase my booking but that is not just coming from adding one or two amenities) Besides item 5 and 6, I am not sure how much other items will attract more guests to my business.

A monthly fee (typically around $5-20/mo) is added on to the payment.

SMS, Direct mail, facebook ads? 

I recently added new properties in a new city and posted a craigslist ad but got no response.