Baselane is a free software and if tenants pay through ACH to your Baselane account then there’s no charge to the tenant. 

Also you can still get the 250k limit even if you don't qualify for the full 500k married filing jointly.

Kind of, we dissolve the partnership (or maybe not, just the joint ownership of two houses), but we each keep a house, without selling taxes?

I truly do feel like my efforts to get to this position of being able to purchase in the first place would be significantly undermined if I went ahead and split the home through a jointly owned LLC. 

An LLC with joint partners/members? 

These tenants are on a joint several lease, and it's not obvious whether joint tenants can violate each other's legal right to quiet enjoyment given the unified nature of their rights and responsibilities. 

For individual taxpayers selling their principal residence, the IRS does provide an exemption up to $250,000 of the capital gains for single filers and up to $500,000 for married couples filing jointly.

A joint venture could end up being great for you, as far as entitlement, development and building are extremely difficult to do and risky. 

What do joint ventures investors look for in a partner?

HSA holders 55 and older can contribute an extra $1,000 to their HSAs.Also in 2024, the IRS increased the standard deduction by $1,500, to $29,200, for married couples filing jointly, plus $1,550 for each spouse 65 and older.