.#2 Keep an eye on interest rates based on what the loan officers proposes. 

Rent would be ~1,400 to 1,800 / month which is above market rate but housing is in very high demand and price is in line with what seniors who live on their own would be willing to pay based on my conversations with local Real Estate Agents. 

As such my market research is based on longterm rental criteria.

@Karin L Mahmoodi Based on the Georgia Landlord/Tenant Guidebook.

We sold a $330k rental property with almost no base so we need to do an 1031 exchange of roughly $300k to offset capital gain.

Things like landscaping/snow removal and labor cost for repairs are going to be highly variable based on your market so you'd need to do your own research on the going rate by either talking to other local investors, running your own google search, or exploring basic services on thumbtack/angies list etc. 

It’s like my client in Omaha (where I’m based) :-) he bought a triplex where rents were under-market by $200 per unit.

Not every state or city mandates that any landlord has to accept Section 8, because the landlord has to not only subject their property to Section 8 inspections, rules and regulations, they also often have to separately arrange for the tenant to pay the non-covered part of the rent and can face difficulty evicting just based on that.

Until you learn to estimate yourself, based on your local costs, any estimate will probably be off.

If you had bigger cabins only, definitely not.One thing I would add though is that your returns are somewhat based on your purchase price which you can control.