Did you send an e-mail to them? 

By sb1482 there cannot be a substantial change in lease terms but requiring notice to introduce animals, requiring keeping public/common areas free of junk, requiring her animal to be leashed in public/common areas, to require instant pet pick up in public/common areas are all reasonable terms, require the animal to not be a nuisance to other tenants (jumping on definitely is a nuisance, but I usually mean this to mean the dog cannot have excessive barking) and would be difficult for tenant to state are substantial change of terms as all those are reasonable requirements. 

I have seen where lenders balk if the wholesaler fee is over 15%.a lot of flippers have started trying to find their own deals with driving for $ and direct mailing.

I have thought about direct mail campaigns and like the idea, but that tends to have at least a 2-3 month lead time on contacts.

Out of the 20 letters I've sent, I've had 1 guy get back to me and we were in discussions but weren't able to find a price that worked for the both of us.The issue is that I only have a few houses on my mailing list so far (just places I've walked or driven by that caught my attention), and blindly searching every street and address # to see which houses are actually legal multifamily will take forever and doesn't seem efficient.I know the data is publicly available, I just don't know how to aggregate it in a way that would be efficient and useful for blasting out marketing mailers.Are there any websites that can pull massive lists of all multifamily houses in my area?

That said, expect to deal with a fair amount of fluff leads.The two best strategies I’ve found are inbound methods: direct mail and Google Ads.Direct mail can be expensive, but it can also yield highly discounted properties.Google Ads, on the other hand, doesn’t require data extraction like calls, direct mail, or texting.

Direct mail How did you finance this deal?

The provider I'm currently with isn't able to send me anything via mail, I've tried 3 different addresses and non seem to work for them.

Direct mail.

I'd say go in person to the PO when you mail, so you can get a receipt...that shows when you mailed in a reasonable way....I notice when you have a nice file when you go to the eviction hearing your chances of winning seem better if the tenant shows up...because chances are they will not be prepared.