For competitive markets 3-4 weeks is good, for less competitive tier 2-3 markets, you can get away with less mailing frequency 4-6 weeks. 

TNT -TV $30.00 HGTV-TV $53.00 AMC -TV $24.00 BRVO-TV $40.00 OWN -TV $13.00 FS1 -TV $15.00 USA -TV $50.00 FXNC-TV $63.00 ESPN-TV $50.00 TRAV-TV $14.00 FX -TV $34.00 SYFY-TV $17.00 ID -TV $5.00 TVL -TV $15.00 OXYG-TV $9.00 FRFM-TV $29.00My spend is 15k a month and gets me a 49% reach and a 12 frequency. 

I do some code violations, unlawful detainers and probate marketing however the list size is small  I’m also spending 15,000 a month on TV in my market that gets me 49% reach and a 12 frequency PPC YouTube and Facebook I am enjoying as well. 

Frequency is difficult to say as each marketer may have a different approach or run separate mailing campaigns.

This site has now surpassed Facebook when it comes to my frequency of use.. it's the next big thing :)

Hey @Jon Klaus - we hit different groups at different frequencies, something like:Absentees - MonthlyOwner Occ - Every 6 to 8 weeksProbate - Hit them twice in 30 days then every 2 months for about 9 months maxWe don't stop mailing once we have our frequencies tuned in - but we do refresh each list every 6 months to get the news and drop the outdated records....

I haven't looked into anything like this and don't know what to expect it terms of cost, I just know that the spreadsheet I've been using (which is not too sophisticated, but not basic either) is not one that can be used if I wanted to ramp up the quantity and frequency of my mailings and manage/keep track of incoming calls. 

Post office will run it through their NCOA system Clean it up i.Sort by last name1.some people won’t have last namesa.remove trusts, corps, llcs, inc, etcb.Use “family of <last name>” Send list to yellow letters What I want to send Frequency Let them do their magic What do I send Small 1st class Postcard i.Needs a call to action1.Urgent Notice2.includes name3.phone number4.owners city5.multicolored – red, green6.back of postcarda.Attention, call to actionii.1st monthiii.include cost of list in budgetiv.will get 6% returned to us undeliverable1.people have moved2.haven’t updated post office3.only get back if 1st class stampa.1st class-treated with priortyb.2-3 days priorityc.will send back to you if bad address4.never use a pitney bowes machinev.we want to get mail back of bad addresses1.try to find owner, PI, skip trace2.find about any liens, taxes, etc for abandons3.a really good resource for prospectsvi.MQ doesn’t remove them from the list…you may want to1.on a tight budget remove them2.if not, you will get new list in 6 mosvii.Takes 5 business days to produce and mail Yellow letter i.Goes out 30 days after 1st pieceii.Looks to be handwritteniii.Red inkiv.Invitation envelopev.Use different phone number than 1st piece1.want consumer to believe 2 different people are marketing to them Larger postcard i.Property Address Noticeii.Phone number in red ink with arrowiii.Final Noticeiv.There is a better way to sell your homev.It is twice size of the small postcardvi.Uses a standard stamp1.won’t get sent back if undeliverable2.will take longer to get to owner3.bigger than a standard envelope Zip letter i.Message same as large postcardii.Has to be torn openiii.Looks like jury duty, govt noticeiv.Very official lookingv.Tear away that they can return on bottomvi.Gives the prospect 4 ways to contact you1.older people like it Professional letter i.Use logoii.Handwritten signature in blueiii.Similar messageiv.Big points in boldv.In a #10 envelope Greeting card i.Put a business card inside itii.Match the month your in1.Christmas, easter, mothers day, 4th july, thxgiving, etc2.all about nurturing

@Claire TrammellWe have been doing most of what you suggested, except for the frequency.  

I believe this business is all about marketing so beginning tomorrow I'm going to detail for 30 days the marketing types, quantity, frequency and prospect groups.