I always assume the worst. So when the rent doesn't arrive I assume they are going, on my terms or theirs. Irrespective of reassurances or promises, if they are in arrears I assume failure, after all how many people go past 1 month arrears and make it up? Another barometer here is contact, fail to call me back, or "unable" to make contact and I assume the tenancy is finished and act accordingly.
Often I hear landlords saying that when contact was made they gave the tenant time, after being promised money, which is just naivete. They rarely pay and when they do make a token payment they are buying time, the relationship is comprimised whatever. Get rid and get decent payers in.
Contact is probably the most important thing to me as is the test of respect. If they are 2 days late and they phone , I accept this even if they should have phoned in advance. Unacceptable excuses include...lost your number, no credit, didn't remember, lost my phone, phone stolen,didn't recognise your number (so didn't answer or call you back)ad infinitum.
Actually in this case you have had a result, you can relet for more money to a professional payer,and you have made on the prop, I can't think of many businesses which reward in this manner.
Houses wanted in Hull to £80k. All considered- burn outs /refurbs or refurbished. Fast completions no surveys. Commissions paid!
Now taking on cost cutting refurbs/management Croydon and Hull.