You bet your monkey butt it is... till it is all on automatic.The "hard" part is ranking 1 on google because it is a lot of work.

Small bank that is a portfolio lender is best bet for an llc.

When the time comes I'll need to appoint someone in Buffalo to do everything I physically cannot do.

I find it particularly difficult when doing due diligence with properties without addresses (lots) to know if I am actually looking at the correct property when I am physically visiting the property.  

I see myself using this style of investments as a strategy to make me money without having to physically be somewhere and as a retirement investment.

If you are looking for solid growth and stability with low cap rates it is probably a good bet.

Your best bet is working with agents/brokers that are good at finding off-market deals or have a staff (like mine) capable of prospecting and marketing directly to owners.In any case - feel free to reach out any time if you'd like to pursue things further.

Your best bet is to find motivated sellers that have equity.Good luck to you! 

Or should I mail an offer to the physical address?

If you're talking about offering to a distressed seller, your best bet is to make the offer in person.