Depending on unit sizes, a quick search shows per-room rents of around $450 to $1250 per month along with all of the amenities and other bonuses like advertisements for 1st month free or whatever...that seems to suddenly make a 20 to 50 year old quadplex with something like 2 beds and 1.5 or 2 baths and no fun amenities much less attractive.  

Can I still send out yellow letters, postcards, door knock properties, and other forms of advertising to buy properties for my wholesaling and flip business?

Brokers have to make sure that there's no cancellation fee that the owner will be charged by the broker for the broker's advertising cost.

I want to create a drip campaign so they are getting something from us every couple of weeks, but this is not my area or expertise.

I do believe RBC (canadian bank) advertises that they will finance properties in the US.  

24 unit 3 buildings 8 one bedroom units each Appleton Wisconsin asking price $987,900Total rent income $142,718Yearly advertisement $500Yearly tax $18,431Yearly insurance $6750Utilities yearly $18,409Annual grass and snow removal $666Annual supplies in repairs $1725Total expenses $46,427NOI of $96,291Giving this a property Rate of 9.75%

Just don't forget to do the public advertising then send the state a copy of it.

Their biggest contribution to your campaign will be to make your money become their money, and you will be right back to where you are now.

@Carole Hardcastle PainterThe lender is the investor that puts down the 2%. many lenders are advertising these.

An initial visit to meet your team or TK provider, view the area, and make sure all is as-advertised is a good idea, but after that you shouldn't need to fly in unless you want to.You're in the right place to get numbers for different investment types in all kinds of markets, so I'd start with narrowing down the specific strategy you want to go with.