STRs are good to go with proper TDT account registration and BTR number ($33 annual fee) and monthly tax payment of 13%:  7% submitted by the platform to the state, 6% of total taxable receipts submitted by owner/agent to the county.   

(you can find how much suspended passive losses you currently have on your IRS Form 8582 - which your CPA is likely not giving to you and in that case you should get a new one)@Yonah Weiss when are you going to get my cost segs done :PWhat Lane mentioned here is IRS code (Sec. 469(g)(1)(A)): upon a taxable disposition of a passive activity, the taxpayer may use any remaining suspended passive activity gain allocated to that activity first against passive loss from the same activity, then against net passive loss from other passive activities, and then as a nonpassive income.In practicality, segregation most likely benefits the GP side (LP not so much) and becoming RE Pro is almost nonpractical (except in Airbnb-self managed case); the PAL offset route is much easier to implement. 

Government everywhere is like a parasite that needs a host (taxpayer) to survive.

So if you are owed $23.4 on a $130 lien (18%), and someone pays $300 for it, then they are happy with an 8% return (23.4/300).I know NJ also has unique rules around the winner in certain circumstances getting the right to collect interest on subsequent tax payments without having to go to auction.

The penalty is from 2-6% depending on the certificate amount, and is only paid on the certificate amount, not on subsequent tax payments.

As a land broker, I've noticed many times that people buy "cheap" properties at tax sale, but later it turns out that the previous owner who defaulted on the taxes didn't necessarily lose it because they didn't have money/couldn't afford the tax bill, but rather because they realized the property doesn't have legal access, doesn't have good zoning, has environmental or topographical challenges, etc, so instead of having an lifetime of useless tax payments, they default and let it go to tax sale. 

Account ClosedMost tax attorney's I know specialize in the followingRepresent US taxpayers in regards to foreign assets that have no been disclosed to the IRS on past tax returnsSubstantiate Transfer pricing costs between countrtiesYou likely don't want a Tax attorney for real estate activities.A real estate attorney should be able to do the following for youreview a purchase/sale of real estate agreementcreate an agreement for an entityconsult you on asset protectionevict a tenantA CPA should be able to do the following for youprovide tax strategiescomplete your tax compliance which provides you comfort that your return is prepared accurately.bookkeepingbusiness consulting/budgeting

What if you made the tax payments for two years in one?

Once you have gained lawful possession, it doesn't end (under pre-2020 rules) until the taxpayer redeems. 

The real answer to your question is that you cannot deduct unpaid rent unless you are an accrual basis taxpayer and you had already included that rent in a prior year's income.