Frequency of contact: weekly, monthly or quarterly? 

Targeting tech professionals is advantageous due to their higher income and frequency of business trips.There are a lot of tech companies with large presences in Raleigh.

As a multifamily property investor I should get used to spending some amount of money on every turnover process 

We are always working to speed things along and improve our tenanting and management practices wherever possible so we can minimize the frequency of evictions and keep our tenants and investors happy.

The frequency has increased as people keep recommending it as the first course of action. 

The frequency in which people abandon their pets in these rental homes is astounding.

3) What is the preferred method and frequency of communication?

As others said, just have a friendly conversation with them to ask them to limit frequency or number of attendees.

Sites like Thumbtack and Task Rabbit can be good for sourcing local business that do snow removal, usually within a reasonable rate of under $100 depending on the frequency of how many times you need to call them.Best of luck! 

Frequency?