They're great at what they do, but book keeping, invoicing, maintaining a schedule, communication, and other vital business skills are lacking.

I forgot to ask if they arrested her for admitting being part of a drug deal.So the officer tells me, after I already submit my contractor's invoice to the city claims office, that they have her name and contact info and I can talk to her about reimbursement.

I wish they would've at least sent me another invoice before sending me to collections.Is there anything I can do to fix the ding on my credit score?

It also allows for you to send invoices directly to the address or their e-mail address. 

Allow tenants to sign lease agreements electronically.Receive online ACH payments with TCPayments (Dwolla) - Tenants pay rent onlineAllows you to list multiple owners for a property and enter all detail information about property, such as the purchase price, purchase date, insurance, taxes, down payment, annual interest rate, current loan balance, loan terms, mortgage loan company, amortization schedule, depreciation years/schedule, utility providers, and much more.Online rental applications  & vendor to screen your applicantsBuilt-in renters insurance vendor for when your tenant signs leaseAuto invoicing and late feesFree listing websiteTenants can submit maintenance request online using a very cool and easy to use interface, of which you can easily assign/forward the maintenance request to one of your service professionals.The Financial Reports sections has a number of great reports that can be auto generated, such as:Depreciation Tracker report that allows you to track annual depreciation for your residential and commercial rental property, which is also used in your tax preparation report.Expense report that provides the expenses based on the property or a specific unit.

I would make sure that whoever you call out to fix a backed up line writes the source of the blockage on the invoice if they are able to determine what caused it. 

Defer your income, if possible, to the next year by waiting to invoice, collect payments, deposit to the bank, etc.

I'd give them a deadline to fix it, if they can't meet that then have someone do it professionally and deduct it from their final payment and send over the invoice.

As long as it is truly placed in service, then yes you are able to expense some repairs rather than capitalizing them.Under the de minimis rule, it is "per item per invoice", so that means that as long as your "projects" are not grouped together as one item on an invoice you are able to expense them.

@Michael Plaks to clarify when you say the driveway repair can be written off immediately: are you referring to only the $1800 repair option, or would it also apply to the $2800 option if the invoice items are each below $2500 (e.g. separating out materials, labor, etc.)?